Audrey Andrews

If we rearrange the letters in the word "strange", what is the ratio of rearrangements where the vowels are not together to the rearrangements where they are together?

Two standard dice are rolled, what is the probability of rolling a pair (both the same number)?

Five numbers have an average of 90. Four of the numbers are 87, 93, 89, and 85. What is the remaining number?

What is the variance of {15, 4, 2, -7, 8, 10}?

What is a box plot and why are they used?

How do you calculate the range of a data set?

Two balls are drawn from a bag containing 5 white and 7 black balls at random. What is the probability that they would be of different colours?

What is the z-score of sample X, if #n = 36, mu= 12.3, St. Dev. =21, and mu_X =18.5#?

There are 8 members of the women’s basketball team and 7 members of the men’s track team at an athletic club meeting. What is the probability that a committee of 3 selected at random will have at least 2 members of the basketball team?

What is the difference between univariate and multivariate regression analysis?

There are 12 face cards in a standard deck of 52 cards. How many ways can you arrange a standard deck of 52 cards such that the first card is a face card?

What are the mean and standard deviation of a binomial probability distribution with #n=9 # and #p=11/32 #?

What is the z score of 0.05?

How do you find the range of 5, 0, 14, 16, 13?

What are the range, median, mean, and standard deviation of: {22, 12, 19, 24, 22, 21, 17, 14, 22, 20, 26, 10}?

How do you find the mean of the random variable #x#?

Suppose a survey of 511 women in the United States found that more than 63% are the primary investor in their household. Which part of the survey represents the descriptive branch of statistics?

What is the relationship between R-Squared and the correlation coefficient of a model?

How to solve extended response question using probability?

Kevin is rolling two dice together and adding them up. Which sums should come up the most frequently?