Answer:
a
Step-by-step explanation:
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Answer:
The standard deviation for the income of super shoppers is 76.12.
Step-by-step explanation:
The formula to compute the standard deviation for the grouped data probability distribution is:
![\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}](https://tex.z-dn.net/?f=%5Csigma%3D%5Csqrt%7B%5Csum%20%5B%28x-%5Cmu%29%5E%7B2%7D%5Ccdot%20P%28x%29%5D%7D)
Here,
<em>x</em> = midpoints

Consider the Excel table attached below.
The mean is:

Compute the standard deviation as follows:
![\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}](https://tex.z-dn.net/?f=%5Csigma%3D%5Csqrt%7B%5Csum%20%5B%28x-%5Cmu%29%5E%7B2%7D%5Ccdot%20P%28x%29%5D%7D)

Thus, the standard deviation for the income of super shoppers is 76.12.
Answer:
9 squares on each side of the square.
Step-by-step explanation:

There are 9 equally sized blocks on one side of square piece of graph paper.
Best Regards!
In order to take a percentage and change it to a fraction we have to place 77 over 100 because it's a whole number.
So, your fraction is 77/100 in simplest form because nothing goes into both equally.
Answer:
(1 x 39) (3 x 13) (13 x 3) (39 x 1)
Step-by-step explanation:
those are all the factors