Question

Evaluate the given expressions (to two decimal places).

2(90)+5(80)+10(70)+3(60)+3(50)+4(40)= than divide by 25
mean =70.8
median =70
mode =70
range = 50

Answers

Damon
I do not understand.
is your data set
2 90 s
5 80 s
10 70 s
etc?

if so I count 27 data points not 25
Damon
mean = 1770/27 = 65.56

mode is clearly 70 if there are ten of them

median, there are 10 below 70 and 4 above 70 so the median is in your 70 group, yes

the range is from 40 to 90 so yes 50
Mary Ann
thank you very much Damon.
Damon
You are welcome :)

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