For the following set of data, find the percentage of data within 2 population standard deviations of the mean to nearest percent 67,39,42,66,72,70,66,67

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step-by-step explanation:

a. she will receive a refund of $278.

step-by-step explanation:

she will travel a distance in the range of 3 - 11 miles

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!