Evaluate the given expressions (to two decimal places).

Question

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

Answer 1

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

Answer 2

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

Answer 3

thank you very much Damon.

Answer 4

You are welcome :)