Problem ID: PRABMT9C Here are some statistics for the number of minutes it took each of 9 members of the track team to run 1 mile.
• mean: 7.3
• median: 7.1
• standard deviation: 1.1
• Q1: 6.8
• Q3: 7.4
When a l'enth time is added to the list, the standard deviation increases to 1.5. Is the tenth time likely an outlier? Explain your reasoning.

Negative 5 1/12 + negative 4 1/4 + 6 3/4

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π