8,919 Answered Questions for the topic statistics

Statistics

10/21/22

elementary statistics
For each of the following scenarios, determine whether the Poisson distribution is appropriate as a model for finding probabilities. A manufacturer of Christmas tree light bulbs knows that 3% of... more
Follows • 1
Expert Answers •1

10/21/22

how are detection limits related to standard deviations and why does this relationship exist?
how are detection limits related to standard deviations and why does this relationship exist?
Follows • 1
Expert Answers •1
Statistics Math

10/21/22

What is the average number of children Amy and Dan must​ have? (Integer or decimal. Do not round.)
Amy and Dan want to have both a male and a female child. If they decide to continue to have children until they have one of each​ gender, what would the average number of children​ be? Assume that... more
Follows • 1
Expert Answers •2
Statistics

10/21/22

A particular professor has noticed that the number of people, P, who complain about his attitude is dependent on the number of cups of coffee, n, he drinks.
From eight days of tracking he compiled the following data:People (P) 12,10,8,8,7,5,4,2Cups of coffee (n) 1,1,2,3,3,4,4,5Unless otherwise stated, you can round values to two decimal places.a) Using... more
Follows • 1
Expert Answers •1
Statistics Probability

10/21/22

Find population mean probability
Find the probability: We have N persons and Y boxes. What is the mean person’s probability of choosing the same box with another one? (I want the probability of the whole population, not the case... more
Follows • 0
Expert Answers •1
Statistics

10/21/22

probability answer
 X is between 0.88 and 1.32 is:
Follows • 1
Expert Answers •1
Statistics

10/21/22

I am very confused how to approach this question, I would appreciate a detailed step by step response if possible thank you : )
Andy is a restaurant owner. He believes 75% of his customers are satisfied with the food quality of his restaurant. From a random sample of 85 customers, what are the following probabilities?... more
Follows • 1
Expert Answers •1
Statistics

10/20/22

Hypothesis testing with one sample

Based on a sample of 400 people 67% owned cats
Follows • 1
Expert Answers •1
Statistics Algebra 2

10/20/22

I want to achieve 24 more wins than losses and I win 60% of the time, what is the fewest amount of games I need to play?
I want to achieve 24 more wins than losses and I win 60% of the time, what is the fewest amount of games I need to play?
Follows • 1
Expert Answers •2
Statistics

10/20/22

Find the probability of patients who survived

Upon arrival at a hospital's emergency room, patients are categorized according to their condition as critical, serious, or stable. In the past year:• 2% of the emergency room patients were... more
Follows • 1
Expert Answers •1
Statistics

10/20/22

Company life probability

11 percent of a certain company's life insurance policy holders are smokers. For each nonsmoker the probability of dying during the year is 0.009. For each smoker the probability of dying during... more
Follows • 1
Expert Answers •1
Statistics

10/19/22

Sampling Distrubtions
On the distant planet Cowabunga, the weights of cows have a normal distribution with a mean of 597 pounds and a standard deviation of 75 pounds. The cow transport truck holds 5 cows and can hold a... more
Follows • 2
Expert Answers •1
Statistics

10/19/22

Sampling Distrubtions
CNBC recently reported that the mean annual cost of auto insurance is $1042. Assume the distribution of auto insurance follows a normal distribution with a standard deviation of $287.Find the... more
Follows • 1
Expert Answers •1
Statistics

10/19/22

Sampling Distrubtions
It is known that 20% of people ride public transport without paying for it. We talk to 63 people who have been on public transport in the last month. What is the probability that the sample... more
Follows • 1
Expert Answers •1
Statistics

10/19/22

Statistics Class
An orange juice producer buys oranges from a large orange grove that has one variety of orange. The amount of juice squeezed from these oranges is approximately normally​ distributed, with a mean... more
Follows • 1
Expert Answers •1
Statistics

10/19/22

Find values of x
The mean of a set of data 4,x+1,7,4 and (x²-1) is 9. Find the possible values of x
Follows • 0
Expert Answers •1
Statistics Math

10/19/22

what is the percentage of scores between two numbers if you have a mean and standard deviation
the question is "If the mean is 95 and the standard deviation is 12.5, what percent of employees would have IQs between 90 and 110?
Follows • 1
Expert Answers •1
Statistics

10/19/22

Statistics math

After giving a test to a group of students, below is the summary of grades and gender.    A B C Total Male 8 9 16 33 Female 10 20 19 49 Total 18 29 35 82 If a student is randomly chosen,... more
Follows • 1
Expert Answers •1
Statistics

10/18/22

helpppppppppppppppppppppppppppppppppppppp
You work for a marketing firm that has a large client in the automobile industry. You have been asked to estimate the proportion of households in Chicago that have two or more vehicles. You have... more
Follows • 1
Expert Answers •1
Statistics

10/18/22

helppppppppppppppppppppp
A pollster wishes to estimate, with 95% confidence, the proportion of people who approve of how President Trump is performing his job.Find the minimum sample size necessary to achieve a margin of... more
Follows • 1
Expert Answers •1
Statistics

10/18/22

help help help help
Suppose we want to estimate the proportion of teenagers (aged 13-18) who are lactose intolerant. If we want to estimate this proportion to within 3% at the 95% confidence level, how many randomly... more
Follows • 1
Expert Answers •1
Statistics

10/18/22

I am not getting the correct answer when i square

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=28.3σ=28.3. You would like to be 95%... more
Follows • 1
Expert Answers •1
Statistics

10/17/22

what is the probability that the die lands on a 13 or a 1
Suppose a special 14-sided die is rolled once where each face is marked with a number 1 through 14. What is the probability that the die lands on a 13 or a 1?
Follows • 1
Expert Answers •1
Statistics

10/17/22

will the range of 10 prime numbers be larger than the first 5 perfect square numbers?
Follows • 1
Expert Answers •1
Statistics

10/17/22

How many different meals are available when you select an​ appetizer, an​ entrée, and a​ dessert?
A restaurant offers a​ $12 dinner special that has 7 choices for an​ appetizer,13 choices for an​ entrée, and 3 choices for a dessert. How many different meals are available when you select an​... more
Follows • 1
Expert Answers •1

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

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.