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Starting with the data values 70 and 100, add three data values to the sample so that the mean is 86, the median is 82, and the mode is 82. Please show all of your work.
 one year ago
 one year ago
Starting with the data values 70 and 100, add three data values to the sample so that the mean is 86, the median is 82, and the mode is 82. Please show all of your work.
 one year ago
 one year ago

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lgbasalloteBest ResponseYou've already chosen the best response.1
have you tried trial and error?
 one year ago

adrenaline_rulesBest ResponseYou've already chosen the best response.1
yes it just confuses me a bit more
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.1
actually....it's not much of "error"... you know the start is 70 and the last is 100...then there are three blanks in the middle 70 _ _ _ 100 right?
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.1
then it says the median is 82...so what do you think should you do?
 one year ago

adrenaline_rulesBest ResponseYou've already chosen the best response.1
theoretically, it should look something like 70+82+82+x+100/5= 66.8
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.1
except... it says the mean is 86 so it should be (72 + 82 + 82 + x + 100)/5 = 86
 one year ago

adrenaline_rulesBest ResponseYou've already chosen the best response.1
ohh. So, then how do you find that x?
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.1
that should be \[\frac{70 + 82 + 82 + x + 100}5 = 86\]
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.1
to solve for x, you should multiply both sides by 5 first
 one year ago

adrenaline_rulesBest ResponseYou've already chosen the best response.1
so have 5*86, which comes to 430, and I believe we can subtract the original 334 by 430, right?
 one year ago

adrenaline_rulesBest ResponseYou've already chosen the best response.1
awesome. That missing number would come to be 96. Thank you!
 one year ago
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