Question

Statisticians use ______ scores to divide the ______ under a curve the way people use a knife to cut pizza. Just as the pizza is a whole unit before it is sliced, the area under the curve is a whole unit before it is sliced.

Answer 1

Statisticians use z-scores to divide the area under a curve the way people use a knife to cut pizza.

Explanation:

Statisticians use z-scores to divide the area under a curve the way people use a knife to cut pizza.

z-score:

• A z-score is a numerical measurement which is measured in terms of standard deviations from the mean.
• Formula:

`z_(score) = \displaystyle(x-\mu)/(\sigma)`

• If a z-score is 0, it tells that the data point is same as the mean.
• Area under the normal curve is 1.