If 60th and 90th percentiles are 650 and 850 then what is the 75th percentile normal distribution

Answers

Answer 1

Answer:

(90+65)/2

=75

so

(650+850)/2

=750


Related Questions

find the greatest 4- digit number, which is exactly divisible by 15 . ( hint : subtract remainder from greatest 5 - digit number.)​

Answers

The greatest number of four digits which is exactly divisible by 15, 24 and 36 is 9720 .

How can the greatest number of four digits be calculated?

The concept that will be used in the question is Prime factorization.

We need to acknowledge the  greatest four digit number which is 9999 , then to get the  required number  we can follow these steps:

We will divide the 9999 by LCM of (15,24 and 36 )Then subtract what you get from step 1 from 9999.

The Prime factorization of the numbers are:

15 = (3 * 5 )

24 = (2^3 * 3)

36 =( 2^2 * 3^2)

Then the LCM (15,24,36)= 2

2^3 * 3^2 * 5 = 360

Then  we can Divide 9999 by 360,  having the 279 as remainder.

Then (9999 - 279) = 9720

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Complete question:

Find the greatest number of four digits which is exactly divisible by 15, 24 and 36

what is 73% as a decimal????
WILL MARK AS BRAINLIEST!!!​

Answers

73%
73/100 = 0.73
73% = 0.73

Answer:

0.73

Step-by-step explanation:

Just think of percentages when switching to a decimal as like a ?/100 fraction per-say. Or a percent of 100. 0.73. (1 would be 100 in this case.)

Hope this helps and have a nice day!

Which is the radian measure for 30° and its associated coordinate point on the unit circle?
7 pie/6
Pie over 6

Answers

Answer:

57

Step-by-step explanation:

this is the boybfiend

For the question of total area of the cuboid is 200cm^.
I understand where we divide 150 by 4.
But why do I need to multiply by 5, when there are 6 faces.

Answers

You need to multiply by 5 instead of 6 because each pair of opposite faces on a cuboid has the same area, so by considering one face from each pair, you ensure that you don't count any face twice.

When calculating the total surface area of a cuboid, you need to understand the concept of face pairs.

A cuboid has six faces, but each face has a pair that is identical in size and shape.

Let's break down the reasoning behind multiplying by 5 instead of 6 in the given scenario.

To find the surface area of a cuboid, you can add up the areas of all its faces.

However, each pair of opposite faces has the same area, so you avoid double-counting by only considering one face from each pair. In this case, you have five pairs of faces:

(1) top and bottom, (2) front and back, (3) left and right, (4) left and back, and (5) right and front.

By multiplying the average area of a pair of faces by 5, you account for all the distinct face pairs.

Essentially, you are considering one face from each pair and then summing their areas.

Since all the pairs have the same area, multiplying the average area by 5 gives you the total surface area.

When dividing 150 by 4 (to find the average area of a pair of faces), you are essentially finding the area of a single face.

Then, by multiplying this average area by 5, you ensure that you account for all five pairs of faces, providing the total surface area of the cuboid.

Thus, multiplying by 5 is necessary to correctly calculate the total surface area of the cuboid by accounting for the face pairs while avoiding double-counting.

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Juan is decorating a bulletin board in his classroom. He wants
to put a piece of ribbon along the outer edge of the entire board.
If the bulletin board looks like the picture below, how many
inches of ribbon will he need to do the job?
32 inches
48 inches
80 inches
B
А
60 inches
C 160 inches
D
208 inches

Juan is decorating a bulletin board in his classroom. He wantsto put a piece of ribbon along the outer

Answers

Answer:160 inches

Step-by-step explanation:

please help! I'm not good at these types of problems

A recent social survey asked respondents whether they like Apple or Microsoft. The responses were recorded in the following table.

a. A respondent is randomly selected among those that prefer Apple, what is the probability that the respondent will be female?
b. A respondent is randomly selected among those that are Male, what is the probability that the respondent prefers Apple?
c. What is the relative frequency of a female who prefers Microsoft?

please help! I'm not good at these types of problems A recent social survey asked respondents whether

Answers

Answer:

See below

Step-by-step explanation:

A)

Apple total = 346Apple female = 194P(Apple, female) = 194/346*100% = 56.07%

B)

Male total = 320Male Apple = 152P(Male, Apple) = 152/320*100% = 47.5%

C)

Female total = 320Female Microsoft = 126RF(Female, Microsoft) = 126/320*100% = 39.38%

what value of x makes this equation true?-80=20+x​

Answers

Answer:

50 i think

Step-by-step explanation:

Answer:

-100

Step-by-step explanation:

-80=20+x

subtract 20 from both sides

-100=x

Emily is entering a bicycle race for charity. Her mother pledges $0.10 for every 0.25 mile she bikes. If Emily bikes 4 miles, how much will her mother donate?

Answers

Answer:

$1.6

Step-by-step explanation:

Because if she donates $0.10 for every 0.25 miles and she bikes 4 miles you would have to be 1.6 because 0.25 x 16=4 so you multiply 16 x 0.10 and there is the answer.

Answer: the answer is 1.5 hope this helps you

Step-by-step explanation:

What is the missing term? Please help me.

What is the missing term? Please help me.

Answers

-2x would be the missing term.

In a bag of blue and yellow candies, the ratio of blue candies to yellow candies is 3:5. If the bag contains 60 yellow candies, how many blue candies are there?

Answers

Answer:

36 blues

Step-by-step explanation:

Answer:

36 blue Candies

Step-by-step explanation:

Let

x ----> the number of blue Candies

y ----> the number of yellow Candies

we know that

The ratio of blue candied and yellow candies is 3:5

Step-by-step explanation:

The ratio of blue candied and yellow candies is 3:5

so

x = 3

y 5 -----> equation A

the bag contains 60 yellow Candies

so

y=60 ----> equation B

substitute equation B in equation A

r 3

60 5

solve for x

x=3 (60) = 36

5

i need to know the answer for this please

i need to know the answer for this please

Answers

I’m absolutely know it is C

How many more 41+ year olds have a preference for Enterprise Content Management in comparison to 18-25 year olds (as a %)?

How many more 41+ year olds have a preference for Enterprise Content Management in comparison to 18-25

Answers

The solution is Option B.

The percentage increment in the preference for  Enterprise Content Management is given by the equation A = 366 %

What is Percentage Error?

The difference between an exact value and an approximation to it is the approximation error in a data value. Either an absolute error or a relative error might be used to describe this error.

Percentage error is the difference between the measured value and the true value , as a percentage of the true value

Percentage Error = [ ( | Measured Value - True Value | ) / True Value ]x 100

Given data ,

Let the percentage increment be represented as A

Now , the equation will be

The number of 41+ year olds having a preference for Enterprise Content Management = 3,215

The number of 18-25 year olds having a preference for Enterprise Content Management = 690

So , the difference in number of preference = 3,215 - 690

On simplifying the equation , we get

The difference in number of preference = 2,525

And , the percentage increase A = ( difference in number of preference / number of 18-25 year olds having a preference for Enterprise Content Management ) x 100

Substituting the values in the equation , we get

The percentage increase A = ( 2525/690 ) x 100

The percentage increase A = 3.659 x 100

The percentage increase A = 366 %

Therefore , the value of A is 366 %

Hence , the percentage increment is 366 %

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Decide which of the two given prices is the better deal and explain why
You can buy shampoo in a 5-ounce bottle for $2.99 or in a 15-ounce bottle for $9.19

Answers

Answer:

5 ounces for $2.99 is 0.598 per ounce

15 ounces for $9.19 per 0.613

The 5 ounce bottle is a better deal

Step-by-step explanation:

What preserves a shapes orientation?

a. Vertical translation
b. Reflection across the shapes base
c. Rotation about its center

Answers

Answer:

a.vertical translation

The answer is A , vertical translation

Find the temperature 7°C lower than 5°C

Answers

Answer: -2 degrees celcius

Step-by-step explanation:

Count back 7 from 5.

The answer is -2.

Answer:

\( \large \bf \implies{ - 2 \degree C}\)

Step-by-step explanation:

Step 1) : Based on the given conditions, formulate:

5°C - 7°C

Step 2) : Calculate

-2°C

please solve, i'll give you brainlist

please solve, i'll give you brainlist

Answers

The solution is x = 1 and y = -5

The system of equations are solved graphically and the value of x = 1 and the value of y = -5

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of first line be = A

Let the equation of second line be = B

Now , the value of A is

y = 3x - 8

The value of B is

y = -2x - 3

The slope of the equation A is 3 and the y intercept is -8

The slope of the equation B is -2 and the y intercept is -3

The equations are solved graphically below , and the point of intersection is P ( 1 , -5 )

Since , the point of intersection of two lines is at P , the point P will be the solutions to the system of equations A and B

So , the point is P ( 1 , -5 ) and the solution is

The value of x = 1

The value of y = -5

Substitute the value of x and y in the equation A , we get

y = 3x - 8

-5 = 3 ( 1 ) - 8

-5 = 3 - 8

-5 = -5

So , the equation of line satisfies the point P ( 1 , -5 )

Substitute the value of x and y in the equation B , we get

y = -2x - 3

-5 = -2 ( 1 ) - 3

-5 = -2 - 3

-5 = -5

So , the equation of line satisfies the point P ( 1 , -5 )

Hence , The system of equations are solved graphically and the point of intersection is  P ( 1 , -5 )

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please solve, i'll give you brainlist

Joyce paid $59.50 for an item at the store that was 65 percent off the original price. What was the original price?

Answers

Answer:

=91.5384615385

Step-by-step explanation:

(59.5/65)x100= 91.5384615385

Given the following diagram, are and opposite rays? yes no

Answers

Answer:

Where is the diagram?

Step-by-step explanation:

Answer:

OC and OE are apposite rays so the Answer is yes

Given the following diagram, are and opposite rays? yes no

A blue boat and a red boat are on the same side of a lake and are 18 miles apart. The blue boat is 30 miles from a lighthouse on the opposite side of the lake. The angle formed by the boats and the lighthouse, and whose vertex is at the blue boat, measures 120°. Find the distance from the red boat to the lighthouse. What is the angle made from the lighthouse to the two boats?

Answers

9514 1404 393

Answer:

red boat distance: 42 milesangle at lighthouse: 22°

Step-by-step explanation:

The Law of Cosines can be used to find the distance from the red boat to the lighthouse.

  b² = l² +r² -2lr·cos(B)

  b² = 18² +30² +2·18·30·cos(120°) = 1764

  b = √1764 = 42

The distance from the red boat to the lighthouse is 42 miles.

__

The angle at the lighthouse can be found using the law of sines.

  sin(L)/l = sin(B)/b

  L = arcsin(l/b·sin(B)) = arcsin(18/42·sin(120°)) ≈ 21.79°

The angle between the boats measured at the lighthouse is about 22°.

A blue boat and a red boat are on the same side of a lake and are 18 miles apart. The blue boat is 30

What is the value of this expression when a =7 and b=-4?12alb3

What is the value of this expression when a =7 and b=-4?12alb3

Answers

a = 7 and b = -4

Evaluate those values into the expression:

\(\frac{|2a|-b}{3}=\frac{|2\cdot7|-(-4)}{3}=\frac{|14|+4}{3}=\frac{14+4}{3}=\frac{18}{3}=6\)

Answer:

the answer is D. 6

Step-by-step explanation:

Please help? I need to please it will give you a lot of rewards

Please help? I need to please it will give you a lot of rewards

Answers

Answer:

<HAD

Step-by-step explanation:

what is the approximate probability that in a random sample of 1000 individuals who have purchased fries at McDonald’s, at least 40 can taste the difference between the two oils? (2.5 pts.)

Answers

Complete Question

In response to concerns about nutritional contents of fast foods, McDonald's has announced that it will use a new cooking oil for its French fries that will decrease substantially trans fatty acid levels and increase the amount of more beneficial polyunsaturated fat. The company claims that only 3 out of 100 people can detect a difference in taste between the new and old oils. Assuming that this figure is correct (as a long-run proportion), what is the approximate probability that in a random sample of 1000 individuals who have purchased fries at McDonald's, at least 40 can taste the difference between the two oils? (2.5 pts.)

Answer:

The probability is  \(P(\^ p \ge 0.04 ) = 0.03216\)

Step-by-step explanation:

From the question we are told that

   The population proportion is  \(p = \frac{3}{100} = 0.03\)

    The sample size is  n  = 1000

 Generally the mean of this sampling distribution is  \(\mu_{x} = 0.03\)

Generally the standard deviation of this sapling distribution is  mathematically evaluated as  

        \(\sigma = \sqrt{\frac{p (1 - p)}{n} }\)

=>      \(\sigma = \sqrt{\frac{0.03 (1 - 0.03)}{1000} }\)

=>      \(\sigma = 0.0054\)

Generally the sample proportion when the number of those that can taste the difference is 40  is mathematically represented as

      \(\^ p = \frac{40}{1000} = 0.04\)

Generally the approximate probability that in a random sample of 1000 individuals who have purchased fries at McDonald's, at least 40( \(\^ p = 0.04\)) can taste the difference between the two oils is mathematically represented  as

     \(P(\^ p \ge 0.04 ) = 1 - P(\^ p < 0.04 )\)

Here

      \(P(\^ p < 0.04 ) = P(\frac{ \^ p - \mu_{x}}{\sigma } < \frac{0.04 - 0.03}{0.0054} )\)

\(\frac{\^ p -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ \^ p )\)

=>   \(P(\^ p < 0.04 ) = P(Z < 1.85 )\)

From the z table the probability of  (Z < 1.85  ) is

      \(P(Z < 1.85 ) = 0.96784\)

So

    \(P(\^ p < 0.04 ) = 0.96784\)

So

   \(P(\^ p \ge 0.04 ) = 1 - 0.96784\)

=> \(P(\^ p \ge 0.04 ) = 0.03216\)

         

Find m∠2 if m∠4 = 130°.

Find m2 if m4 = 130.

Answers

Answer:
m = 130 degrees

Solve ARST.
R
S
72°
7
T
15
r
S

Solve ARST.RS727T15rS

Answers

Answer:

r = 14.3s = 4.6S = 18°

Step-by-step explanation:

You want the solution to right triangle RST with RS = 15, R = 72°, T = 90°.

Trig relations

The mnemonic SOH CAH TOA reminds you ...

  Sin = Opposite/Hypotenuse   ⇒   r = 15·sin(72°) ≈ 14.3

  Cos = Adjacent/Hypotenuse   ⇒   s = 15·cos(72°) ≈ 4.6

The acute angles in a right triangle are complementary, so ...

  S = 90° -R = 90° -72° = 18°

Solve ARST.RS727T15rS

find fourier transform f(x)=1\|x|

Answers

Answer:

Step-by-step explanation:

Solve the equation. -5(-4+2n)=-10(n-2)

Answers

Answer:

0 = 0 means that there are infinite solutions.

Step-by-step explanation:

Equation is -5(-4+2n)=-10(n-2)

1. Distribute the -5 and -10

20 -10n = -10n + 20

2. Subtract 20 from one side to the other to get only 1 variable on 1 side.

-10n = -10n

3. divide -10 to separate the variable from the constant.

n = n

This means there are infinite solutions.

The two possible solutions for this equation from smallest to largest are

Answers

Answer:

Addition

Step-by-step explanation:

What is the value of x? Round only your final answer to the nearest hundredth.

What is the value of x? Round only your final answer to the nearest hundredth.

Answers

The length of the hypotenuse is 12.52 yards.

Given that a right triangle, we need to find the value of the hypotenuse x,

Trigonometric ratios can be calculated by taking the ratio of any two sides of the right-angled triangle.

We can evaluate the third side using the Pythagoras theorem, given the measure of the other two sides. We can use the abbreviated form of trigonometric ratios to compare the length of any two sides with the angle in the base.

Let us consider a right-angled triangle with one of its acute angles to be x. Then the cosine formula is, cos x = (adjacent side) / (hypotenuse), where "adjacent side" is the side adjacent to the angle x, and "hypotenuse" is the longest side (the side opposite to the right angle) of the triangle.

We know that, the cosine of the angle is the ratio of the base to the hypotenuse,

So,

Cos 37° = 10 / x

x = 10 / Cos 37°

x = 12.52

Hence the length of the hypotenuse is 12.52 yards.

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Which of the following represents the series? –13 + (–7) + (–1) + 5 + 11

Answers

Answer:

Adding +6 in turn

Step-by-step explanation:

-13+6=(-7)

(-7)+6=(-1)

(-1)+6=5

5+6=11

11+6=17

17+6=23

23+6=29

29+6=35

........... And so on

if it helped uh please mark me a brainliest :))

An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the population.
Find the probability that the sum of the 95 values is less than 7,450. (Round your answer to 4 decimal places)

Answers

The probability that the sum of the 95 values is less than 7450 is 0.1002

Given Data :

An unknown distribution has a

Mean (μ) = 80

Standard Deviation (σ) = 12

Sample Size (n) = 95

is drawn from the population.

∑X ≈ N (95 * 80, \(\sqrt{95}\) * 12)

= N (7600, 116.96)

The Probability that the sum of the 95 values is less than 7450 is given as follows :

P(∑x < 7450) = P [(∑x - μ) / s] < [(7450 - 7600) / 116.96

= P(Z < -1.282) = 0.1 (From Z table)

Hence, the probability that the sum of the 95 values is less than 7450 is 0.1002

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