algebrahave i done this right

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

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  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

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    posted by Damon
  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

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    posted by Damon
  3. thank you very much Damon.

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  4. You are welcome :)

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    posted by Damon

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