barry has scores of 93,84,86 and 75 . he wants to raise the mean to 86

Mathematics
Tutor: None Selected Time limit: 1 Day

page ; practice 9-1 ,  measure of center

Apr 28th, 2015

With the scores of 93,84,86,75 

The total is 338

the mean is 84.5

To get a mean of 86 barry will need 86*5=430

He will need to score 430-338=92 in his fifth score

Apr 28th, 2015

i have another question  liz has a score of 87,75,82,93 and she wants to raise the medium to 87

Apr 28th, 2015

please post this as a separate question.I will answer

Apr 28th, 2015

how 2 more questions ? jim has score of 60,73,82,75 wants to raise mean to 75

andrea has scores of 84,73,92,88 wants median to be 86

Apr 28th, 2015

Its alright but you have to post them separately.I will answer them as soon as possible.

Apr 28th, 2015

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