Chase is conducting A survey at school to see what their favorite subject is. He surveyed of 25 students from his math class. He found that 75% of the students in math what is their favorite subject. Is this a valid inference? Why or why not? Explain your answer to complete sentences.

Answers

Answer 1

Answer:

Not a valid inference.

Step-by-step explanation:

This is not a valid inference. This is because there may be a slight bias from the classmates he is asking, because, as the question read, he is in math class. Asking math class students if they like math or english more, may have a swayed opinion.

Answer 2

Answer:

Step-by-step explanation:

This is a biased survey, due to the fact he only asked his classmates in math. For a unbiased survey, everyone must have an equal chance of being picked.

Related Questions

A company produced n ovens in April. In May, the number of ovens the
company produced decreased by 7%. Which expression represents the
number of ovens the company produced in May?
A 0.07n
B. 0.3n
C. 0.93
D. 1.07n

Answers

C. 0.93 because it is 1n and then you subtract .07

It’s c:0.93 that’s the number of ovens produced in may

Which number can be used in the box to make the number sentence true?
26-8 >_ + 3
A.11
B.15
C.23
D.26

Answers

Answer:

Step-by-step explanation:bbbb

The answer is A because 11+3 is less than 18. All the others equal a bigger number.

The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.

Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside

Part A: Calculate the measures of center. Show all work. (2 points)

Part B: Calculate the measures of variability. Show all work. (1 point)

Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)

Answers

To calculate the measures of center, we need to find the mean and median for each school.

For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).

Range: The range is the difference between the largest and smallest values in the dataset.

For Mountain View School:
Range: 9 - 0 = 9

For Seaside School:
Range: 9 - 0 = 9

Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.

For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4

For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5

To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.

Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice

Part A:

For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.

For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.

Part B:

For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.

For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.

Part C:

If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.

Can anybody help me out?

Answers

I need help too on this question

Answer: Company A

if you find the average of each company you’ll see that company a has the highest amount

Which expression represents the following calculation?
Find 7.4 times the difference between 87 and 24.

Possible answers (choose one but explain why you choose it, thanks.)
A. 7 . 4 × 87 − 24
B. 24 × ( 87 − 7 . 4 )
C. 24 × 87 − 7 . 4
D. 7 . 4 × ( 87 − 24 )

Answers

Answer: The expression that represents the following calculation is 7.4 × (87 - 24).

Step-by-step explanation: According to BODMAS, we can solve this question. In BODMAS, we have to solve the following in order :

B => Bracket

O => Of

D => Division

M => Multiplication

A => Addition

S => Subtraction

Using BODMAS, we can solve this question by solving the Bracket first. Then as in the Bracket, we have Subtraction, so we will solve that, and after solving the Bracket, we will go for Multiplication. Then, finally, we will get our required answer.

To learn more about BODMAS,

https://brainly.com/question/29756765?referrer=searchResults

https://brainly.com/question/29626866?referrer=searchResults

The answer is D because of the Bodmas.

I know this question is not about math or science but my friends are saying the Leonardo DiCaprio when he was young is hotter than Zac Efron now and when he was young. I need y’alls opinions.
Who is hotter, young Leonardo DiCaprio or 35 year old Zac Efron? My pick is Zac Efron but I want some opinions.

Answers

Answer:

it's Zac Efron for sure, Leonardo DiCaprio is just not the same...

young leonardo for sure

A composite figure is shown.

A five-sided figure with two parallel sides. The shorter one is 18 centimeters. The height of the figure is 12 centimeters. The portion from the vertex to the perpendicular height is 4 centimeters. The portion from a point to a vertical line created by two vertices is 3 centimeters.

Which of the following represents the total area of the figure?

A: 222 cm2
B: 240 cm2
C: 258 cm2
D: 294 cm2

Answers

B is the answer your welcome

Final answer:

The area of the given trapezoid, using the given dimensions, is calculated to be 150 cm2, which is not among the provided choices, hence none of them are correct.

Explanation:

The figure described seems to be a trapezoid, which is a five-sided figure with two parallel sides. The formula to calculate the area of a trapezoid is (base1+base2)/2 * height. In this case, we have one base being 18 cm (the shorter parallel side), but we don't have the length of the other base. However, given the height and the two components of the unknown base, we can infer the remaining base is 7 cm (4 cm from vertex to height and 3 cm from a point to a vertical line created by two vertices). Thus, given the indices, the calculation would be: (18cm + 7cm)/2 * 12cm. Therefore, the total area of the figure is 150 cm2, which is not an option in the given choices. Hence, none of the options A, B, C, D are correct based on the provided data.

Learn more about Area of Trapezoid here:

https://brainly.com/question/15640807

#SPJ2

Which is the output for the following linear function when the input is
-7?
y-x=2y+1
Options:
6
12
-13
8

Answers

Answer:

A) 6

Step-by-step explanation:

$y-x=2y+1\\y-(-7)=2y+1\\y+7=2y+1\\7=y+1\\6=y$

The output is y=6 when the input is x=-7

y-(-7)=2y+1
y+7-1=2y
6=2y-y
y=6

Question content area top
Part 1
Determine a linear function from the data in the table. Identify a point that is not part of the function.
x
f(x)
0
180
1
174
2
168
3
162
4
156
Question content area bottom
Part 1
Which point is not part of the function?
A.
(30,0)
B.
(21,54)
C.
(12,108)
D.
(15,270)
E.
(9,120)

HELP PLEASE :C

Answers

Answer:

Step-by-step explanation:

12,108 is not the part of the function

102 should be real function for 12

EASY/ WILL MARK BRAINLIEST/ 15 POINTS
Find the surface area of the triangular prism.

Answers

Answer:

1. 135in. 2. 20in

Step-by-step explanation:

Use the rule to multiply the lenght by the width and you will find its area

Answer: 15

Step-by-step explanation:

PEDMAS?

Example 1:

3+8(4-2)-7

Parentheses First = 3+8(2)-7
Exponents-none
Multiply/Divide 3+16-7
Add/Subtract 19-7 = 12

Example 2:

32-(9-5)+7x3-8÷2
Parentheses 32-(4)+7x3-8÷2
Exponents 6-4+7x3-8÷2
Multiply/Divide 6-4+21-4
Add/Subtract 2+17=19

Review

Directions: Compute the answers using PEMDAS.

1) 7 x 5 + 3=

2) 8 - (6 + 2)=

3) 10 - 6 + 5=

4) (21 3) x 2=

5) (12 6) + 6=

6) 3 + 10 5=

7) 8 + 4 - 2=

8) 7 + 5 - 5=

9) 16 8 - 1=

10) (20 - 17) - 3=

11) 8 + 2 - 7=

12) 18 (4 + 2)=

13) 8 - 6 + 7=

14) 5 - (18 6)=

15) 2 + 13 - 4=

16) (7 - 4) + 3=

17) 9 - 7 + 4=

18) 2 x 6 3=

19) 15 5 + 4=

20) 8 + 6 - 4=

Answers

Answer:

1. 38

2. 0

3. -1

4. 14

5. 8

6. 5

7. 10

8. 7

9. 1

10. 0

11. 3

12. 2

13. 5

14. 3

15. 11

16. 6

17. 2

18. 4

19. 7

20. 10

Step-by-step explanation:

PEMDAS stands for Parentheses, Exponents, Multiplication/Division, and Addition/Subtraction. It is a mnemonic device used to remember the order of operations when solving mathematical equations.

Here are the answers to the review questions using PEMDAS:

1) 7 x 5 + 3= 38
2) 8 - (6 + 2)= 0
3) 10 - 6 + 5= 9
4) (21 / 3) x 2= 14
5) (12 / 6) + 6= 8
6) 3 + 10 x 5= 53
7) 8 + 4 - 2= 10
8) 7 + 5 - 5= 7
9) 16 / 8 - 1= 1
10) (20 - 17) - 3= 0
11) 8 + 2 - 7= 3
12) 18 x (4 + 2)= 108
13) 8 - 6 + 7= 9
14) 5 - (18 / 6)= 2
15) 2 + 13 - 4= 11
16) (7 - 4) + 3= 6
17) 9 - 7 + 4= 6
18) 2 x 6 / 3= 4
19) 15 / 5 + 4= 7
20) 8 + 6 - 4= 10

Joanna draws a scale model of a rectangular table for a carpenter to build.
On her drawing, 3/4 of an inch represents 1 foot. In the drawing, the table is 7 1/2 inches long. How long, in feet, will the table be when the carpenter builds it?

A. 4 2/3 ft
B. 2 5/8 ft
C. 5 5/8 ft
D. 10 ft

Answers

Answer:

Step-by-step explanation:

just multiply the three over four inches with seven and a half to get the accurate measurements

the answer to this is D

Find x. (Finding an angle measure given extended triangles) Please help. Thanks!

Answers

Answer:

x = 31º

Step-by-step explanation:

The verticle angle at the bottom left is 33º

The supplementary angle on the bottom right is 180 - 98 = 82

Sum of the angles in a triangle is 180

(34 + x) + 33 + 82 = 180

Combine like terms

x + 149 = 180

Subtract 149 from both sides

x = 31º

Answer:

x = 31º

The verticle angle at the bottom left is 33º

The supplementary angle on the bottom right is 180 - 98 = 82

Sum of the angles in a triangle is 180

(34 + x) + 33 + 82 = 180

Combine like terms

x + 149 = 180

Subtract 149 from both sides

x = 31º

Step-by-step explanation:

Mrs.Timmons displays a drawing of an object and asks her studentsvto calculate the number of cubic units the object contains. What is Mrs.Timmons asking her students to calculate?

Answers

Answer:

volume

Step-by-step explanation:

cubic units means volume

Answer:multiply the value of each dimension (ength, width, and height

Step-by-step explanation:

Find m∠1 - Its Geometry

Answers

Answer:

m∠1 = 98°

Step-by-step explanation:

22. Evaluate -3x+x³ for x = -3

Answers

Answer:

-18

Step-by-step explanation:

-3x + x³

-3(-3) + (-3)³

9 + (-27)

9 - 27 = -18

Answer:

-18 is correct answer

Step-by-step explanation:

$-3x+x³ \\ - 3( - 3) + { ( - 3)}^{3} \\ + 9 - 27 \\ - 18$

hope it helped you:)

A farmer planted corn in two different fields. He planted 500 seeds of regular corn in Field A and 500 seeds of experimental corn in Field B. At
harvest time, more ears of corn had grown in Field A than in Field B. The farmer concluded that more corn grew in Field A because of the type of corn planted.

Choose two other possible variables that could have caused more corn to grow in Field A.

A.
A farmer planted corn in two different fields. He planted 500 seeds of regular corn in Field A and 500 seeds of experimental corn in Field B. At
harvest time, more ears of corn had grown in Field A than in Field B. The farmer concluded that more corn grew in Field A because of the type

of corn planted.

Choose two other possible variables that could have caused more corn to grow in Field A. The type of soil in the field
B. The cost per ear of the corn
C. The flavor of each type of corn
D. The amount of sunlight in each field
E. The amount of corn planted in each field

Answers

Answer:

its a and d obvioudly the price of the corn doesnt makethe corn be planted different

Step-by-step explanation:

so the soil causes the corn to grow in b if the soil was different then that would have caused it to grow less so A nd D

Answer:

ion know can u also be my tutor pls

Step-by-step explanation:

Please answer quickly!

Answers

160 because you add them all up together

Help pls. Also wdym this is to short yk why so long >:/

Answers

Answer:

Y= mx + b

so Y = 1/3x + 2

just substitute

Due to the answer requesting slope intercept form, one shall use the points (3,2) in order to substitute for b. Slope intercept form is formatted in y = mx + b, which m would be your slope, which in this particular problem was given; therefore, y = 1/3x +b.

Now, we shall use points (3,2) as the substitutes for the solution for b, which 3 would be the input and 2 would be y.

Therefore, 2 = 1/3(3) + b
2 = 1 + b, therefore, one would be subtracted from 2 which would give us the answer of b equaling to one. Thus, y = 1/3x + 1

Which property is demonstrated below?

A.
inverse property
B.
distributive property
C.
commutative property
D. identity property

Answers

B. distributive property

D I think gl though lol I’m sorry if it’s wrong

Write the expression:

6 times a number y

6/y

y – 6

6–y

6y

Answers

The answer is 6y

6 times the number y is 6y

The answer will be 6y

Please help me with this question I will give brainliest

Answers

Answer:

$13.77

Step-by-step explanation:

To find what one yard would cost you would take the price and divide it by the number of yards. In this case, 1 yard happens to cost $4.59. You then multiply 4.59 times 3 to get 13.77

If rectangle ABCD is transformed to create rectangle A’B’C’D’, and the rule used was (x, y) --> (x, -y), which transformation has occurred?

A) Reflection across the y-axis
B) Reflection across the x-axis
C) Rotation of 90° around the origin
D) Translation

Answers

Answer: A) Reflection across the y-axis

I need help i dont understand at all-

Answers

The correct answer should be B

It’s the answer B !!

Please helpp!! Ty ty!♡♡

Answers

Answer:

Step-by-step explanation:

4a +12 -2c + c

4( ) + 12 - 2( ) + ( )

4(4) + 12 - 2(3) + 3

16 + 12 - 6 + 3

28 - 6 + 3

22 + 3

Helping in the name of Jesus.

Answer: 25

Therefore, 4a + 12 - 2c + c = 25

Step-by-step explanation:

a = 4

c = 3

Swap letters for numbers:

4a + 12 - 2c + c

(4)(4) + 12 - (2)(3) + 3

16 + 12 - (2)(3) + 3

28 - (2)(3) + 3

28 - 6 + 3

22 + 3 = 25

Draw a conclusion:

Hence your answer is:

4a + 12 - 2c + c = 25

I hope this helps!

Help me, please
16. A square community vegetable garden has an area of 196 square yards. What is the length of each side?

Answers

Answer:

Step-by-step explanation:

Answer:

Lemme explain one step by one

First,i will write an equation

Length times Length equals 196

You can put 196 as square root since it has to be the same number times the same number

12 times 12 is 144

13 times 13 equals 169

14 times 14 equals 196

So the answer is 14.

Step-by-step explanation:

Hope this helps and if you need more help,feel free to ask

~Marion

this is my last question

Answers

Answer:

Step-by-step explanation:

35 - 9 = 26

Answer:

? = 22.6

Step-by-step explanation:

35²-15² = x²

1225-225 = 1000

√1000 = 31.6

31.6 - 9 = 22.6

Write the new function if the parent function f(x)=-2x-5 is translated 2 units left.

Answers

Answer:

f(x)= -2x-3, im so sorry if this is wrong

Step-by-step explanation:

to translate it left you have to add 2

Giving brainliest !!!! For correct answer please

Answers

I think it’s B or A But I’m not sure

It’s A for sure , ur welcomeee

The multiplicative inverse of -⅚ is

Answers

Answer: -6/5

Step-by-step explanation:

Multiplicative inverse simply is another word for 'reciprocal'.

A reciprocal is the fraction upside down, or inverted.

Knowing this, let's convert -5/6.

-5/6 becomes -6/5, and you don't do anything about the negative sign.

Answer: -6/5

Step-by-step explanation:

u just get the reciprocal

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