College random variables problems, solved and explained - PlainMath

Recent questions in Random variables

Jason Yuhas 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n = 88 and \(\displaystyle{p}={\frac{{{24}}}{{{32}}}}\)?

namenerk 2022-01-19 Answered

What is the formula for standard deviation of grouped data?

untchick04tm 2022-01-19 Answered

What is the average of 75 and 105?

jamessinatraaa 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n=9 and \(\displaystyle{p}={\frac{{{11}}}{{{32}}}}\)?

Linda Seales 2022-01-19 Answered

A normal distribution has a mean of 140 and a standard deviation of 40. How do you calculate the percentile rank of a score of 172?

zgribestika 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n=94 and \(\displaystyle{p}={\frac{{{32}}}{{{37}}}}\)?

Vikolers6 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n=87 and \(\displaystyle{p}={\frac{{{5}}}{{{37}}}}\)?

Kathy Williams 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n=11 and \(\displaystyle{p}={\frac{{{19}}}{{{23}}}}\)?

Chris Cruz 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n=210 and \(\displaystyle{p}={\frac{{{12}}}{{{21}}}}\)?

deiteresfp 2022-01-19 Answered

Miranda earned scores of 84, 91, 95, 78, and 92 on her math tests. How do you find her average (mean) score?

William Boggs 2022-01-19 Answered

What is the mean, median, and mode of the numbers 3.2, 3.5, 3.2, 3.8, 7.2, 4.2?

Frank Guyton 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n=130 and \(\displaystyle{p}={\frac{{{7}}}{{{9}}}}\)?

Quentin Johnson 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n=12 and \(\displaystyle{p}={\frac{{{3}}}{{{5}}}}\)?

Alfred Martin 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n=10 and \(\displaystyle{p}={\frac{{{4}}}{{{5}}}}\)?

Bobbie Comstock 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n=100 and \(\displaystyle{p}={\frac{{{8}}}{{{10}}}}\)?

Sam Longoria 2022-01-19 Answered

What are the mean and standard deviation of a binomial probability distribution with n=114 and \(\displaystyle{p}={\frac{{{3}}}{{{49}}}}\)?

Quentin Johnson 2022-01-19 Answered

What is the standard deviation of {1, 1, 1, 3, 3, 3}?

Sam Longoria 2022-01-19 Answered

What is the standard deviation of {44, 46, 33, 10, 50, 27}?

obrozenecy6 2022-01-19 Answered

If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15, what is the probability of a random person scoring over 110?

hunterofdeath63 2022-01-19 Answered

What is the standard deviation of just one number?

1
2
3
4
...
18

...