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Statistics Probability

03/12/22

Probability rolling a die

You roll a die repeatedly until you observe a 6 and then you stop. Let N denote the number of rolls you made before you stop. a) What is the probability of N = 10? b) What is the probability of... more

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Statistics

03/11/22

Find the area under the standard normal curve to the left of z = 1.25.

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Statistics Math

03/11/22

Business Statistics.

The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random... more

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Statistics Math

03/11/22

Business statistics.

For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.a. To the left of 1.337.......... ( to 2 decimals).

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Statistics

03/11/22

Binomial Distribution

After being rejected for employment, Kim Kelly learns that the Bellevue Credit Company has hired only four women among the last 22 new employees. She also learns that the pool of applicants is very... more

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Statistics Math Probability

03/10/22

If Roberto scored 85, what was his z-score?

On a nationwide math test, the mean was 75 and the standard deviation was 10. If Roberto scored 85, what was his z-score?

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Statistics Probability

03/10/22

how would you change the game (ticket prices, number of tickets, prize amounts, etc.) in order to encourage more people to purchase tickets while still raising at least $4000 for your organization?

If you were organizing a raffle like this, how would you change the game (ticket prices, number of tickets, prize amounts, etc.) in order to encourage more people to purchase tickets while still... more

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Statistics Probability

03/10/22

Using the empirical rule (as presented in the book), what is the approximate percentage of daily phone calls numbering between 59 and 69?

In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-shaped and has a mean of 64 and a standard deviation of 5. Using the... more

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Statistics

03/10/22

Probaility help.

Factories A and B produce computers. Factory A produces 3 times as many computers as factory B. The probability that an item produced by factory A is defective is 0.038 and the probability that an... more

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Statistics Math Math Help

03/09/22

Help Solving: A Single Population Mean using the Normal Distribution

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=26.3. You would like to be 99% confident that... more

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Statistics

03/09/22

math statistic problem

Suppose you want to select 1000 New Yorkers. Given the population of each borough, what sampling techniques one could use to draw this sample? Explain.NYC has 5 boroughs. Use the 2011 population... more

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Statistics Probability Fractions Percentages

03/09/22

Probability of winning

If I purchase 10 lottery tickets, with 44,020 prizes to be won and 1,100,000 total tickets sold, what are my odds of winning?

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Statistics Math English Probability

03/09/22

I don’t understand how to calculate a and get the standard deviation for b, the mean for c and e, and don’t get f

The distribution of actual weights of wedges of cheddar cheese produced at a dairy is normal with a mean of 9.1 ounces and a standard deviation of 0.2 ounces. (Round to 2 decimal places for all... more

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Statistics Math English Probability

03/09/22

What method/ process should I use in order to solve this? It’s due in one day.

Large adult population has a mean IQ of 113, standard deviation of 25. Suppose 40 are randomly selected for a market research campaign.(z-values (2 decimal places) and rest of the answers to 4... more

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Statistics Math English Probability

03/09/22

I don’t understand how to do this question.

At a particular University, students’ grades in introductory statistic classes are generally unimodal and skewed to the left with a mean of 63 and a standard deviation of 18. (Round to 2 decimal... more

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Statistics

03/09/22

Find the probability of “x” successes given the probability of “P” success on a given trial.

A) n=3 x=0 P=0.05 B)n=4 X=3 P=.30 C)n=5 x=2 P=.25

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Statistics

03/09/22

If the following data is given, find the mean of this data. Round the answer to the 2 decimal places.

12, 35, 51, -11, 23, 42, 60, -19, 27, 0

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Statistics

03/09/22

n inspector must select 4 tests to perform in a certain order on a manufactured part. He has a choice of 6 tests. How many ways can he perform 4 different tests?

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Statistics Math Probability Maths

03/09/22

A population consist of five (5) measurements 2,3,5,6 and 7. What is the variance of the sampling distribution?

A population consist of five (5) measurements 2,3,5,6 and 7. What is the variance of the sampling distribution?a.0.89b.1.29c.3.90d.2.20

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Statistics Math Algebra 1 Algebra 2

03/09/22

A function g (x) = 3x^2-5x+4 has graph passing through point P = (a,b) where the line tangent to y = g (x) has slope 12 at point P: Use calculus to find the exact value of a.

A function g (x) = 3x2 - 5x + 4 has graph passing through point P = (a,b) where the line tangent to y = g (x) has slope 12 at point P: Use calculus to find the exact value of a.

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Statistics

03/08/22

thermometer reading

A certain company manufactures precision thermometers that are supposed to give readings of 0.00° C at the freezing point of water. Tests on a large sample of these thermometers reveal that some... more

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Statistics Math Probability Maths

03/08/22

The weights of 1000 children have an average of 45 kilograms and a standard deviation of 5 kilograms.

Situation: You volunteered to be part of the medical mission in your barangay and in-charge to get weight of the children. The weights of 1000 children have an average of 45 kilograms and a... more

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Statistics Probability

03/07/22

Calculate the probability of not rolling a 2. (Express your answer as a decimal rounded to the nearest ten-thousandth.)

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Statistics

03/07/22

The mean score on the SAT

The mean score on the SAT is 1014 with a standard deviation of 115. The ACT has a mean score of 21 and a standard deviation of 5. If Luciano, score a 1240 on the SAT and a 30 on the ACT, find his z... more

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Statistics Math Probability Maths

03/07/22

You plan to open a new pizza restaurant and found out the data for a similar restaurant which is presented below.

You plan to open a new pizza restaurant and found out the data for a similar restaurant which is presented below.amount - percentage$40000 - 10% loss$0 - 35%$40000 - 45% profit$200000 - 10%... more

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Probability rolling a die

Find the area under the standard normal curve to the left of z = 1.25.

Business Statistics.

Business statistics.

Binomial Distribution

If Roberto scored 85, what was his z-score?

how would you change the game (ticket prices, number of tickets, prize amounts, etc.) in order to encourage more people to purchase tickets while still raising at least $4000 for your organization?

Using the empirical rule (as presented in the book), what is the approximate percentage of daily phone calls numbering between 59 and 69?

Probaility help.

Help Solving: A Single Population Mean using the Normal Distribution

math statistic problem

Probability of winning

I don’t understand how to calculate a and get the standard deviation for b, the mean for c and e, and don’t get f

What method/ process should I use in order to solve this? It’s due in one day.

I don’t understand how to do this question.

Find the probability of “x” successes given the probability of “P” success on a given trial.

If the following data is given, find the mean of this data. Round the answer to the 2 decimal places.

n inspector must select 4 tests to perform in a certain order on a manufactured part. He has a choice of 6 tests. How many ways can he perform 4 different tests?

A population consist of five (5) measurements 2,3,5,6 and 7. What is the variance of the sampling distribution?

A function g (x) = 3x^2-5x+4 has graph passing through point P = (a,b) where the line tangent to y = g (x) has slope 12 at point P: Use calculus to find the exact value of a.

thermometer reading

The weights of 1000 children have an average of 45 kilograms and a standard deviation of 5 kilograms.

Calculate the probability of not rolling a 2. (Express your answer as a decimal rounded to the nearest ten-thousandth.)

The mean score on the SAT

You plan to open a new pizza restaurant and found out the data for a similar restaurant which is presented below.

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