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Nana76 [90]
3 years ago
15

Lucille has a collection of more than 500 songs on her phone that have a mean duration of 215 seconds

Mathematics
1 answer:
Elena-2011 [213]3 years ago
8 0

Answer:

5

Step-by-step explanation:

The sample mean is given by dividing the standard deviation by the squareroot of SRS

Given standard deviation of 35 and SRS of 49, we know that the squareroot of 49 is 7 ie √49=7

By substituting the given values we can obtain the sample mean as follows.

sample mean=35/√49=35/7=5

The sample mean for the given question is hence 5

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