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Statistics Probability

02/09/23

Probability and net profit

Suppose you are playing a game. The random variable, Y, represents your net profit in dollars. The probability distribution of Y is as follows. (Round your answers to 4 decimal places, if... more

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Statistics

02/09/23

Suppose a lab is developing a robust new test to look for diabetes in children. If a child actually has diabetes, the probability that the test will be positive is 84%, indicating they have diabetes.

If the child does not have diabetes, the probability that the test will be positive is 10%. Suppose 5.6% of all children actually have diabetes. (Round your answer to 3 decimal places, if... more

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Statistics

02/09/23

You decide to start taking coins out of your piggy bank. Currently, your piggy bank has 43 coins, of which 14 are toonies and 8 are loonies.

Suppose that when you take a coin out, you do not put it back in the piggy bank; you are picking coins without replacement. (Round your answers to 4 decimal places, if needed.)a) What is the... more

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Statistics

02/09/23

A manufacturer produces items with a rectangular base. Let random variables denote the respective length (X) and width (Y) of the rectangle (in cm)

Suppose X and Y are independent with the following parameter values.E(X) = 5, Var(X) = 0.19, E(Y) = 6, Var(Y) = 0.35The perimeter is then defined as 2X + 2Y.(Round your answers to 4 decimal places,... more

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Statistics

02/08/23

What is the probability of a disaster occurring?

You have 11 cards (2 - 12) and 2 dice (6-sided) you draw 3 cards randomly and roll the dice. What is the probability of the sum of the 2 dice equaling any one of the three cards causing a disaster?

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Statistics Math

02/08/23

If there really were 8 vanilla and 11 peanut butter candies in the box, what is the probability that you would have picked 2 vanillas in a row?

Someone hands you a box of 19 chocolate-covered candies, telling you that 8 are vanilla creams and the rest are peanut butter. You pick candies at random and discover the first 2 you eat are all... more

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Statistics Probability

02/08/23

What would the height need to be for this curve to be a density curve?1/8 or 1/12, 0r 1/20, or 1

line starts from 8 to -----------------------------20

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Statistics Probability

02/08/23

Please help me solve this in order for me to understand!

In a certain breed of cattle, the length of gestation has a mean of 284 days and a standard deviation of 5.5 days. Thirty-four percent of gestation periods are longer than how many days, rounded to... more

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Statistics Math

02/08/23

Find the probability

Assume that when adults with smartphones are randomly selected, 37% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that exactly 6 of... more

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Statistics

02/06/23

Is a measure of 22 inches "far away" from a mean of 16 inches? As someone with knowledge of statistics, you answer "it depends" and request the standard deviation of the underlying data.

Is a measure of 22 inches "far away" from a mean of 16 inches? As someone with knowledge of statistics, you answer "it depends" and request the standard deviation of the underlying data.(a)... more

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Statistics Math Probability

02/06/23

Adult men have heights with the mean of of 69.0 inches and the Standard deviation of 2.8 inches. Find is the zone of a man who is 68.5 inches tall.

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Statistics Math Probability

02/06/23

The heights of men in America are normally distributed, with the mean of 69.5 inches and the standard deviation of 2.63 inches. What is the z score of a 6’4 man and z score of a 5’11 women.

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Statistics Math Probability

02/06/23

Adult mean have heights with the mean of of 69.0 inches and the Standard deviation of 2.8 inches. Find is the zone of a man who is 68.5 inches tall.

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Statistics

02/06/23

math 146 Statistics

According to the U.S. Census Bureau, the mean of the commute time to work for a resident of Louisville, Kentucky is 23.9 minutes. Assume that the standard deviation of the commute time is 5.2... more

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Statistics

02/06/23

need help please

About 9% of the population has a particular genetic mutation. 300 people are randomly selected.Find the standard deviation for the number of people with the genetic mutation in such groups of 300.... more

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Statistics Math Probability

02/05/23

Adult mean have heights with the mean of of 69.0 inches and the Standard deviation of 2.8 inches. Find is the zone of a man who is 68.5 inches tall.

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Statistics

02/05/23

Normal distributions

About _% of the area under the curve of the standard normal distribution is outside the interval z=[-1.68,1.68] (or beyond 1.68 standard deviations of the mean.)

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Statistics Math

02/05/23

The heights of men in America are normally distributed, with the mean of 69.5 inches and the standard deviation of 2.63 inches. What is the z score of a 6’4 man and z score of a 5’11 women.

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Statistics Math

02/05/23

the five number summary in the data set was 45,54,59,63,70. an observation is considered a outlier if it’s below what. An observation is considered a outlier if it’s above what?

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Statistics Math

02/05/23

the five number summary in the data set was 45,54,59,63,70. an observation is considered a outlier if it’s below what. An observation is considered a outlier if it’s above what?

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Statistics Math

02/05/23

The heights of men in America are normally distributed, with the mean of 69.5 inches and the standard deviation of 2.63 inches. What is the z score of a 6’4 man and z score of a 5’11 women.

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Statistics

02/05/23

I don’t men have Hiights with the meaning of 69. 0 inches and the standard deviation of 2.8 inches. Find the height of a man with the Z score of 2.0714.

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Statistics

02/04/23

I need help solving this math problem

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested.... more

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Statistics Elementary Math

02/03/23

Math 118 (statistics)

Suppose that water usages in American showers are normally distributed, with an average shower using 15.7 gallons, and a standard deviation of 3.2 gallons. Estimate the percentage of showers that... more

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Statistics

02/03/23

For a standard normal distribution, find:

P(z < c) = 0.7522Find c rounded to two decimal places.

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Probability and net profit

Suppose a lab is developing a robust new test to look for diabetes in children. If a child actually has diabetes, the probability that the test will be positive is 84%, indicating they have diabetes.

You decide to start taking coins out of your piggy bank. Currently, your piggy bank has 43 coins, of which 14 are toonies and 8 are loonies.

A manufacturer produces items with a rectangular base. Let random variables denote the respective length (X) and width (Y) of the rectangle (in cm)

What is the probability of a disaster occurring?

If there really were 8 vanilla and 11 peanut butter candies in the​ box, what is the probability that you would have picked 2 vanillas in a​ row?

What would the height need to be for this curve to be a density curve?1/8 or 1/12, 0r 1/20, or 1

Please help me solve this in order for me to understand!

Find the probability

Is a measure of 22 inches​ "far away" from a mean of 16 inches? As someone with knowledge of​ statistics, you answer​ "it depends" and request the standard deviation of the underlying data.

Adult men have heights with the mean of of 69.0 inches and the Standard deviation of 2.8 inches. Find is the zone of a man who is 68.5 inches tall.

The heights of men in America are normally distributed, with the mean of 69.5 inches and the standard deviation of 2.63 inches. What is the z score of a 6’4 man and z score of a 5’11 women.

Adult mean have heights with the mean of of 69.0 inches and the Standard deviation of 2.8 inches. Find is the zone of a man who is 68.5 inches tall.

math 146 Statistics

need help please

Adult mean have heights with the mean of of 69.0 inches and the Standard deviation of 2.8 inches. Find is the zone of a man who is 68.5 inches tall.

Normal distributions

The heights of men in America are normally distributed, with the mean of 69.5 inches and the standard deviation of 2.63 inches. What is the z score of a 6’4 man and z score of a 5’11 women.

the five number summary in the data set was 45,54,59,63,70. an observation is considered a outlier if it’s below what. An observation is considered a outlier if it’s above what?

the five number summary in the data set was 45,54,59,63,70. an observation is considered a outlier if it’s below what. An observation is considered a outlier if it’s above what?

The heights of men in America are normally distributed, with the mean of 69.5 inches and the standard deviation of 2.63 inches. What is the z score of a 6’4 man and z score of a 5’11 women.

I don’t men have Hiights with the meaning of 69. 0 inches and the standard deviation of 2.8 inches. Find the height of a man with the Z score of 2.0714.

I need help solving this math problem

Math 118 (statistics)

For a standard normal distribution, find:

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If there really were 8 vanilla and 11 peanut butter candies in the box, what is the probability that you would have picked 2 vanillas in a row?

Is a measure of 22 inches "far away" from a mean of 16 inches? As someone with knowledge of statistics, you answer "it depends" and request the standard deviation of the underlying data.