Question

Weekly wages at a certain factory are
normally distributed with a mean of
$400 and a standard deviation of $50.
Find the probability that a worker
selected at random makes between
$250 and $300.
Answer using the 68 - 95 - 99.7 rule.
[? ]%

Answer 1

The probability is 13.5%.

How to calculate the probability?

Mean = $400

SD = $50

We'll find the z score and this will be 2 and 1 respectively.

The calculated value in the z table will be 0.0228 and 0.1587.

Therefore, the probability will be:

= 0.1587 - 0.0288

= 0.1359

= 13.5%

Learn more about probability on:

brainly.com/question/14563041

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