Please sum1 help? I don’t understand this it would mean the wrld thx

The probability of the poorly thrown dart hitting the target is 0.007.

Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about the likelihood of an event happening, or how likely it is.

The diameter of the dartboard = 24 inches. The diameter of the target is 2 inches, the radius of the target, r = 1 inch.Radius of the dartboard, R = 12 inches.

From the above details, Area of the dartboard = π R² = π (12)² = 144π sq.inches. Area of the bull's eye = π r² = π (1)² = π sq.inches. Probability of hitting the bull's eye = Area of the bull's eye/Area of the dartboard= π/144π= 1/144= 0.0069444444Rounded off to three significant digits, the probability of hitting the target is 0.00695 or 0.007 (rounded up).Hence, the probability of the poorly thrown dart hitting the target is 0.007.

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The calculator will give the result as a decimal value, which can be interpreted as the probability of the random variable falling within the specified range.The normalcdf function is used to calculate the cumulative probability of a range of values from a normal distribution with a given mean and standard deviation.

These values are used to calculate the probability of a random variable falling within a specified range in a normal distribution. The calculator will give the result as a decimal value between 0 and 1, which represents the probability of the random variable falling within the specified range.
For example, if you want to calculate the probability of a random variable falling between 1 and 2 in a normal distribution with a mean of 0 and a standard deviation of 1, you would use the following inputs:
normalcdf(1, 2, 0, 1)
The calculator will give the result as a decimal value, which can be interpreted as the probability of the random variable falling within the specified range.The normalcdf function is used to calculate the cumulative probability of a range of values from a normal distribution with a given mean and standard deviation.

or example, to find the probability that a normally distributed variable X is between 0 and 2, with a mean of 1 and a standard deviation of 0.5, you would use the following command: normalcdf(0, 2, 1, 0.5)

The result that the calculator will give is the cumulative probability of the normal distribution for the specified range of values, which is a value between 0 and 1. This represents the probability that a randomly selected observation from the normal distribution falls within the specified range.

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The puppy and kitten will meet in 4 seconds if they start running towards each other from a distance of 180 meters.

To determine how soon the puppy and kitten will meet, we can calculate the time it takes for them to cover the total distance between them.

Let's assume that they start running towards each other at the same time. The combined speed at which they are approaching each other is the sum of their individual speeds:

Combined speed = Puppy's speed + Kitten's speed

Combined speed = 25 meters per second + 20 meters per second

Combined speed = 45 meters per second

The total distance they need to cover is 180 meters. To find the time it takes for them to meet, we can use the formula:

Time = Distance / Speed

Time = 180 meters / 45 meters per second

Time = 4 seconds

Therefore, the puppy and kitten will meet in 4 seconds if they start running towards each other from a distance of 180 meters.

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The probability that the date sara chose is a prime number is 0.2.

Given that, sara chose a date from the calendar.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes.

Here, total number of outcomes = 30

Number of favourable outcomes = 6

Now, probability = 6/30

= 1/5

= 0.2

Therefore, the probability that the date sara chose is a prime number is 0.2.

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We know at centroid medians bisect each other in the ratio 2:1.

\(\\ \sf\longmapsto TY=2x\)

\(\\ \sf\longmapsto 2x=30\)

\(\\ \sf\longmapsto x=\dfrac{30}{2}\)

\(\\ \sf\longmapsto x=15\)

Answer:

A

Step-by-step explanation:

On the median TW the distance from the vertex to the centroid is twice the distance from the centroid to the midpoint , then

YW = \(\frac{1}{2}\) × TY = \(\frac{1}{2}\) × 30 = 15

Answer:

A: open circle above -2 arrow going to the right until +8

B: Open circle above -2 arrow going to the left until -8

C: Closed circle above -1 arrow going to the left until -8

D: Closed circle above 0 arrow going to the right until +8

Step-by-step explanation:

a. The percentage earned on the test is 87.5%.

b. Based on the grading scale, the grade earned would be a B.

a. Let's assume the number selected is 35, representing the number of points earned on the pop quiz.

Percentage = (Points Earned / Total Points) * 100

Percentage = (35 / 40) * 100

Percentage = 0.875 * 100

Percentage = 87.5%

Therefore, the percentage earned on the test is 87.5%.

b. According to the grading scale provided:

A: 90% - 100%

B: 80% - 89%

C: 70% - 79%

Since the percentage earned in Part A is 87.5%, it falls within the range of 80% - 89%. Therefore, based on the grading scale, the grade earned would be a B.

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Answer:   question 9      is     3/12

Step-by-step explanation:

The probability that both randomly chosen people own a dog can be calculated using the concept of independent events. If 18% of people own dogs, it means that the probability of a person owning a dog is 0.18.

When picking the first person, there is a 0.18 probability that they own a dog. Now, assuming replacement (putting the person back before picking the second person), the probability that the second person also owns a dog is also 0.18.

To find the probability of both events occurring, we multiply the individual probabilities together: 0.18 * 0.18 = 0.0324.

Therefore, the probability that both randomly chosen people own a dog is 0.0324, which is equivalent to 3.24%. This means that if we were to repeat this random selection process many times, we would expect approximately 3.24% of the time to end up with two dog owners.

It's important to note that this calculation assumes independence between the events and replacement, meaning the probability of one person owning a dog does not affect the probability of the other person owning a dog.

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Answer:

35+0.50t=52

Step-by-step explanation:

52-35=17

.50t=17

17/0.50

T=34

Answer:

3

Step-by-step explanation:

27 tickets = 9 prizes

Since they are all equal, it would be 27 divided by 9 = 3

1. Replace the white bread with whole grain bread
2. Replace the turkey with a leaner meat, such as chicken or turkey bacon
3. Replace the mayonnaise with low-fat Greek yogurt
4. Replace the provolone cheese with a lower-fat cheese such as mozzarella
5. Reduce the amount of lettuce used
6. Replace the tomato slice with tomato slices or tomato paste.

To lower the fat content of the sandwich, you can make these changes:

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Answer:

Second option 1.6x10^14

Step-by-step explanation:

Statistics help present data precisely and draw meaningful conclusions. While presenting data, one should be aware of using adequate statistical measures.

Readers are generally interested in knowing the variability within the sample, descriptive data should be precisely summarized with SD. The use of SEM should be limited to computing CI which measures the precision of population estimate. Journals can avoid such errors by requiring authors to adhere to their guidelines.

Studying the entire population is time and resource-intensive and not always feasible; therefore studies are often done on the sample, and data are summarized using descriptive statistics. These findings are further generalized to the larger, unobserved population using inferential statistics.

For example, to understand the cholesterol levels of the population, the cholesterol levels of the study sample, drawn from the same population are measured.

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32 papers would Ashley have to remain to grade after working for 6 hours.

What is simplification?

Simplifying procedures is one way to achieve uniformity in work efforts, expenses, and time. It reduces diversity and variety that is pointless, harmful, or unnecessary.

Here, we have

Ashley is a teacher and takes home 98 papers to grade over the weekend.

She can grade at a rate of 11 papers per hour.

We have to calculate how many papers would Ashley has remaining to grade after working for 6 hours.

Based on the given conditions, formulate:: 98 - 11 × 6

Calculate the product or quotient: 98 - 66

Calculate the sum or difference: 32

Hence, 32 papers would Ashley have to remain for a grade after working for 6 hours.

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The chi-square test of homogeneity is the nonparametric test used in a situation where the dependent variable is categorical

Homogeneity tests compare the proportions of responses from two or more populations for binary variables (e.g. male/female, yes/no) or variables with two or more outcome categories. The chi-square test for homogeneity is a nonparametric test used in situations where the dependent variable is categorical.

Data can be displayed using a contingency table where the population and categories of the variables are the row and column labels.

The null hypothesis states that all populations are uniform with respect to the proportions of categories of a categorical variable. If the null hypothesis is rejected, we conclude that the above proportions are different in the observed population.

The chi-square test for the homogeneity statistic is computed in exactly the same way as the chi-square test for the independent statistic. The difference between these two tests is the null hypothesis statement, the underlying logic, and the sampling technique.

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Answer: 24 of 80 is 30%

Step-by-step explanation:

24 of 80 can be written as: 24/80

To find percentage, we need to find an equivalent fraction with denominator 100. multiply both numerator & denominator by 100: 24/80 x 100/100

= (24x100 / 80 ) x 1/10 = 30/100

Therefore, the answer is 30%

If you are using a calculator, simply enter 24÷80×100 which will give you 30 as the answer.

This question is incomplete

Complete Question:

The trail around Mirror Lake in Yosemite National Park is 5 miles long.

The tables below show the fraction of miles each hiked:

Hiker Fraction of miles hiked

Andrea 2/5

Jon 1/2

Callie 4/5

9. What fraction describes how much more of the trail Jon hiked than Andrea hiked?

10. What fraction describes how much more of the trail Callie hiked than Jon hiked?

Answer:

9. 1/10

10. 3/10

Step-by-step explanation:

9. What fraction describes how much more of the trail Jon hiked than Andrea hiked?

This is calculated as the number of miles Jon hiked - The number of miles Andrea hiked

1/2 - 2/5

= The Lowest Common Denominator is 10

= [(5 × 1) - (2 × 2)] /10

= [5 - 4] /10

= 1/10

The fraction that describes how much more of the trail Jon hiked than Andrea hiked is 1/10

10. What fraction describes how much more of the trail Callie hiked than Jon hiked?

This is calculated as the number of miles Callie hiked - The number of miles Jon hiked

4/5 - 1/2

= The Lowest Common Denominator is 10

= [(4 × 2) - (1 × 5)] /10

= [8 - 5] /10

= 3/10

The fraction describes how much more of the trail Callie hiked than Jon hiked is 3/10

Answer:

The chain is around 11 feet in length.

Step-by-step explanation:

Area of a circle = π × r²

380 ft² = π × r²

121 ft² = r²

11 ft = r

Therefore, the value of the test statistic is 1.71.

The test statistic calculates the standard errors that separate the sample percentage from the predicted population proportion. The null hypothesis, which in this case is that the genuine proportion of readers who own the specific make of automobile is not greater than 58%, is stronger evidenced by a larger absolute value of the test statistic.

We must apply the following formula to determine the test statistic's value:

Z = (P - p) / (p*(1-p)/n), where P is the sample proportion, p is the hypothesised population proportion (0.58 in this case), n is the sample size (300), and sqrt stands for the square root.

By replacing the given values, we obtain the following result, which is rounded to two decimal places: z = (0.62 - 0.58), (0.58 * 0.42 / 300), z = 1.71.

The test statistic is positive, which indicates that the sample percentage of 62% exceeds the population proportion predicted by 58%. The difference between the sample proportion and the predicted population proportion is 1.71 standard errors distant from the mean, according to the value of 1.71. This indicates that the sample proportion is statistically significant at the 0.02 level, but in order to draw a firm conclusion, we must compare it to the critical value.

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Answer:

Any line can be graphed using two points. Select two x x values, and plug them into the equation to find the corresponding y y values.

Step-by-step explanation:

Answer:

So M is the midpoint of RS lmbo

Step-by-step explanation:

What you have here are lengths of two equal segments, expressed as different algebraic expressions.

you just set those two expressions equal, and solve for x.  Then plug that x into EITHER of the two expressions, to get the equal lengths of RM & MS.

The group size is given as follows:

12 people.

The number of visitors for each day is given as follows:

The group size must be the same for each day, hence it is the greatest common factor of 108 and 156.

The greatest common factor between two amounts is obtained factoring them simultaneously by prime factors, as follows:

108 - 156|2

54 - 78|2

27 - 39|3

9 - 13

There is not any more number by which 9 and 13 are divisible, hence the group size is given as follows:

gcf(9, 13) = 2² x 3 = 12 people.

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Answer:

Either circle will do since they are the same size. If you already know the radius, you can move on. If you don't know the radius, then you can use a ruler to measure the widest part of the circle and then divide it by 2. This will be more accurate than trying to measure half of the diameter. Let's say that the radius of this cylinder is 1 inch (2.5 cm). Write it down.

Step-by-step explanation:

The relationship would be the volume of a cylinder is 3 times the volume of a refraction cup.

A cylindrical shape is a three-dimensional geometrical shape consisting of two parallel circular bases which are connected by some height h.

Part A: To find the volume of a cylinder, we need the dimensions of the cylinder such as the radius of the base of the cylinder and the height of the cylinder.

Part B: We have given the base of the refraction cup as a half-circle, we can calculate the radius of the base.

The diameter is given as 8 cm so, the radius would be half of the diameter.

r = 4cm

Part C:  If you put two refraction cups together, we get the full three-dimensional shape that is a circle.

Part D: The formula for the volume of a cylinder is V=pi r^2 h.

\(V=\pi r^2 h\\V=3.14\times4^2\times 2\\V = 100.48\)

Part E: The volume of a refraction cup = \(4/3\pi r^{3}\)

= 4/3 (3.14)(8)

= 33.49

Part F: The relationship between the value D and the value from Part D is as follows

The volume of a cylinder = 3 times the volume of a refraction cup

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Answer:

49/3 or 16⅓

Step-by-step explanation:

gallons ordered = 62

gallons used = 45⅔

so we have to subtract gallons used from gallons ordered to get our answer.

so,. 62 - 45⅔

=16⅓

hope it helps .

To find the subtransient current in per unit for a three-phase fault on bus 4, we need to calculate the fault current using the bus impedance matrix.

Given bus impedance matrix Zbus:

| j0.15 j0.08 j0.04 j0.07 |

| j0.08 j0.15 j0.06 j0.09 |

| j0.04 j0.06 j0.13 j0.05 |

| j0.07 j0.09 j0.05 j0.12 |

To find the fault current on bus 4, we need to find the inverse of the Zbus matrix and multiply it by the pre-fault voltage vector.

The pre-fault voltage vector V_pre-fault is given as:

| 1.0/0° |

| 1.0/0° |

| 1.0/0° |

| 1.0/0° |

Let's calculate the inverse of the Zbus matrix:

Zbus_inverse = inv(Zbus)

Now, we can calculate the fault current using the formula:

I_fault = Zbus_inverse * V_pre-fault

Calculating the fault current, we have:

I_fault = Zbus_inverse * V_pre-fault

Substituting the values and calculating the product, we get:

I_fault = Zbus_inverse * V_pre-fault

= Zbus_inverse * | 1.0/0° |

| 1.0/0° |

| 1.0/0° |

| 1.0/0° |

Please provide the values of the Zbus matrix and the pre-fault voltage vector to obtain the specific values for the fault current and the per-unit current from generator 2.

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Answer:

what??? explain more pls

Step-by-step explanation:

Answer:

154m , 160m

Step-by-step explanation:

Let width of the rectangle = w

Length = w + 6

Perimeter of rectangle = 628 m

2( length + width ) = 628

2( w + 6 + w) = 628        {Combine like terms}

2*( 2w +6 ) = 628            {Distributive property}

2*2w + 2*6 = 628

4w + 12 = 628         {subtract 12 from both sides}

        4w = 628 - 12

        4w = 616       {Divide both sides by 4}

        w = 616/4

       w = 154 m

Length = w + 6 = 154 + 6 = 160 m