Discrete Math Unit 3 Review

Normal Dist of scores have mean =75 & std dev=5. How high must score be to fall in the top 25%?

Which one of the following makes up the five-number summary?

Find the five-number summary for the data 9, 11,4, 13, 23, 12, 8, 15, 10, 3, 2, 14.

Here are 7 ages of college students (in years):30, 18, 44, 21, 22, 25, and 26. Find their mean.

Scores on test are normal. The mean = 75 & std dev = 5. What % of scores fall between 65and 75?

The percentage of scores on a standardized exam that lie above the third quartile is:

The histogram below represents the class scores on a science exam. This histogram is:

Here are 7 ages of college students (inyrs): 30, 18, 44, 21, 22, 25, and 26. Find their median.

If the mean of the data 4, 6, 8, 5, 7, 10, 9 is7, what is its standard deviation?

Below is a stem plot of the ages of patients at a doctor’s office. Which statement is true?