Question

The data list shows the cost, in dollars, of different brands of sneakers at a shoe store.

44.99, 59.99, 32.30, 65.00, 52.59

What is the population standard deviation, to the nearest tenth, of the data (assuming this is all of the data)?

Answer 1

All the progress we've made so far was on here:
https://questioncove.com/study#/updates/6048a70c3ad7c95181004c00



\(\sigma =\sqrt{ \dfrac{\sum(x_i-\mu)^2}{N}}\)

where
\(\sigma\) = population standard deviation
\(\sum\) = the sum from 1 to N
\( x_i\) = each individual data point
\(\mu\) = mean of the data list
N = total number of data points

Answer 2

You eventually after much labor and direction found that the mean \(\mu = 50.974\)

so now we need to calculate

\( (x_i - \mu)\)

and then we can find \( (x_i - \mu)^2\)

so where we left off, what is:

44.99 - 50.974 =
59.99 - 50.974 =
32.30 - 50.974 =
65.00 - 50.974 =
52.59 - 50.974 =

tell me the numbers for each subtraction