Newest statistics Questions | Wyzant Ask An Expert

Statistics

11/19/22

Statistics questions

The acme company manufactures widgets. The distribution of a widget weights is bell shaped. The widget weights have a mean of 45 ounces and a standard deviation of 4 ounces.

Follows • 1

Answers •1

Statistics

11/17/22

The maintenance department at the main campus of a large state university receives daily requests to replace fluorecent lightbulbs. The distribution of the number of daily requests is bell-shaped... more

Follows • 0

Answers •1

Statistics Math Algebra 2 Sat Math

11/16/22

Can Someone please explain to my grade Predictions

So i currently have 1.5 gpa in a class. I need a 3.0 to pass and these are the only assignments that are left. How well do i have to perform in the remaining assignments order to achieve a 3.0.

Follows • 1

Answers •1

Statistics

11/16/22

Density probability

From this density, the probability that X > 1.04 or X < 0.04 is:

Follows • 1

Answers •1

Statistics

11/15/22

48% of all pets sold at a pet store are dogs. One day, 9 people arrive at the store and purchase pets. (Note: One pet is purchased per person.)

a) what is the probability that exactly 3 of them are dogs? b) if the store only has 5 dogs, what is the probability that they have sufficient dogs for sale that day?

Follows • 1

Answers •1

Statistics Math Probability

11/15/22

The probability function fX for a random variable X is given by the table below.

The probability function fX for a random variable X is given by the table below. x | -1 0 1 2 3 fX(x) = P(X = x)| 0.2 0 u 0.2 0.1 (a) Find u. (b) Find the... more

Follows • 1

Answers •1

Statistics

11/15/22

Plz help me solve this equation

In a certain county there are two radio stations: the Maisha FM and the Jambo FM. A researcher interested in the loyalty to stations of this county found the following:Of those who listen to the... more

Follows • 1

Answers •1

Statistics

11/14/22

Statistics and Probability

According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green. (Round your... more

Follows • 1

Answers •1

Statistics

11/13/22

A high school baseball player has a 0.174 batting average. In one game, he gets 6 at bats. What is the probability he will get at least 2 hits in the game?

Follows • 1

Answers •1

Statistics

11/13/22

Central limit theorem

The amount of coffee that people drink per day is normally distributed with a mean of 17 ounces and a standard deviation of 5.5 ounces. 34 randomly selected people are surveyed. Round all answers... more

Follows • 1

Answers •1

Statistics

11/13/22

Testing One-Sample Proportion Hypothesis (Word Problem)

A tyre manufacturer claims that more than 85% of the company’s tyres will last at least 80,000km. In a random sample of 400 tyres, 22 wore out before reaching 80,000km. Do the data support the... more

Follows • 1

Answers •1

Statistics Probability

11/12/22

Help me with this statistics homework please asap

1) A tyre manufacturer claims that more than 85% of the company’s tyres will last at least 80,000km. In a random sample of 400 tyres, 22 wore out before reaching 80,000km. Do the data support the... more

Follows • 1

Answers •1

Statistics

11/11/22

In a normal distribution

what is the probability that a random sample of 305 with population proportion 0.46 has a sample proportion of between 0.42 and 0.42?

Follows • 1

Answers •1

Statistics

11/11/22

About 6% of the population has a particular genetic mutation. 300 people are randomly selected. Find the mean for the number of people with the genetic mutation in such groups of 300.

About 6% of the population has a particular genetic mutation. 300 people are randomly selected.Find the mean for the number of people with the genetic mutation in such groups of 300.

Follows • 1

Answers •1

Statistics

11/11/22

standard deviation

The national average for mathematicsSATS in 2011 was 514. Suppose that the distribution ofscores was approximately bell-shaped and that the stan-dard deviation was approximately 40. Within... more

Follows • 1

Answers •1

Statistics

11/10/22

probability with replacement

You pick three cards from a deck of 52 cards and putting them back in. What is the probability that you get a Jack, a king, a queen?

Follows • 1

Answers •1

Statistics

11/10/22

Interpret the lower quartile

Follows • 1

Answers •1

Statistics

11/10/22

Find and interpret the lower quartile and upper quartile of the mental development index.

Follows • 1

Answers •1

Statistics

11/10/22

statistics homework 8.2

A genetic experiment involving peas yielded one sample of offspring consisting of 448 green peas and 140 yellow peas. Use a 0.01 significance level to test the claim that under the... more

Follows • 1

Answers •1

Statistics Probability

11/09/22

Probability Question

Robin bought a four-scoop ice cream cone having a scoop each of vanilla, chocolate, strawberry and cherry. In how many orders can the four scoops be stacked on the cone if they are stacked one on... more

Follows • 1

Answers •1

Statistics

11/09/22

express the confidence interval (0.47,0.63) in the form p-hat + or - moe.

Statistics

Follows • 1

Answers •1

Statistics

11/06/22

Homework help needed I can not figure this one out

Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is 122000 dollars. Assume... more

Follows • 1

Answers •1

Statistics

11/06/22

Homework question help please

CNNBC recently reported that the mean annual cost of auto insurance is 1040 dollars. Assume the standard deviation is 280 dollars. You take a simple random sample of 70 auto insurance policies.... more

Follows • 1

Answers •1

Statistics

11/06/22

Statistics homework question

CNNBC recently reported that the mean annual cost of auto insurance is 1041 dollars. Assume the standard deviation is 300 dollars. You take a simple random sample of 91 auto insurance policies.Find... more

Follows • 1

Answers •1

Statistics

11/06/22

Suppose a math class contains 35 students. There are 15 females (four of whom speak Spanish) and 20 males (five of whom speak Spanish). Give all answers as decimals to at least two decimal places.

Suppose a math class contains 35 students. There are 15 females (four of whom speak Spanish) and 20 males (five of whom speak Spanish). Give all answers as decimals to at least two decimal... more

Follows • 1

Answers •2

Statistics questions

find the normal distribution

Can Someone please explain to my grade Predictions

Density probability

48% of all pets sold at a pet store are dogs. One day, 9 people arrive at the store and purchase pets. (Note: One pet is purchased per person.)

The probability function fX for a random variable X is given by the table below.

Plz help me solve this equation

Statistics and Probability

A high school baseball player has a 0.174 batting average. In one game, he gets 6 at bats. What is the probability he will get at least 2 hits in the game?

Central limit theorem

Testing One-Sample Proportion Hypothesis (Word Problem)

Help me with this statistics homework please asap

In a normal distribution

About 6% of the population has a particular genetic mutation. 300 people are randomly selected. Find the mean for the number of people with the genetic mutation in such groups of 300.

standard deviation

probability with replacement

Interpret the lower quartile

Find and interpret the lower quartile and upper quartile of the mental development index.

statistics homework 8.2

Probability Question

express the confidence interval (0.47,0.63) in the form p-hat + or - moe.

Homework help needed I can not figure this one out

Homework question help please

Statistics homework question

Suppose a math class contains 35 students. There are 15 females (four of whom speak Spanish) and 20 males (five of whom speak Spanish). Give all answers as decimals to at least two decimal places.

Still looking for help? Get the right answer, fast.

OR

RELATED TOPICS

RELATED QUESTIONS

statistics

statistics

I need a creative ideas

RECOMMENDED TUTORS

find an online tutor