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Shtirlitz [24]
3 years ago
11

If the mean of a data set is 100 and almost all the data is from 40 to 160, what is a good approximation of the variance?

Mathematics
2 answers:
Travka [436]3 years ago
4 0
A.) 120

The variance is the range of a data set, which shows how spread out numbers are. To get the variance, we take the last number and subtract it from the first number. 160-40=120. Therefore, there is 120 numbers between 40 to 160.
andrew-mc [135]3 years ago
3 0
(A). 120 ................
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+
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7 0
4 years ago
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<u>Step-by-step explanation</u>:

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