Chapter 12 - Data Analysis and Probability - 12-4 Box-and-Whisker Plots - Mixed Review - Page 739: 31

mean=747.5,median=708,mode=627

Work Step by Step

You have the values:948,627,731,697,988,643,719,627. To find the mean you have to add all the values up and divide by 8:$\frac{948+ 627+ 731+ 697+ 988+ 643+ 719+ 627}{8}$=$\frac{5980}{8}$=747.5 To find the median you have to arrange the values from the smallest to largest(627,627,643,697,719,731,948,988)You have two medians -697,719- you have to find the average which will be the median so $\frac{697+719}{2}$=$\frac{1416}{2}$=708 The mode is the number which occurs the most,627 repeats twice in this data set so it is the mode.

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