Question

PLS HELP 25 POINTS

X х These line plots show the results of a survey of 10 boys and 10 girls about how many hours they slept the previous night. X x X X X X + X + 3 1 2 4 5 6 7 8 9 10 Boys Select from the drop-down menus to complete each statement. X X X X X xxx X х X xx+ co + 1 2 3 4 5 6 7 8 9 10

The range Girls Choose


The mean Choose.​

Answer 1

Range

The range of the data is the difference between the largest data value and the smallest data value.

Therefore, the ranges are:

Boys: 10 - 3 = 7

Girls: 9 - 5 = 4

So the boys have a larger range than the girls.

Mean

To calculate the mean, add up all the data values then divide by the number of values.

`\textsf{Mean of Boys}=(3+6+7+7+8+8+8+8+9+10)/(10)=(74)/(10)=7.4`

`\textsf{Mean of Girls}=(5+6+6+6+7+7+7+8+8+9)/(10)=(69)/(10)=6.9`

So the boys have a higher mean than the girls.