#### ElleWoods69

##### New member

- Joined
- Mar 22, 2020

- Messages
- 7

The time required to assemble an electronic component is normally distributed with a mean and a standard deviation of 29 minutes and 14 minutes, respectively.

a. Find the probability that a randomly picked assembly takes between 20 and 34 minutes. (Round "z" value to 2 decimal places and final answer to 4 decimal places.)

b. It is unusual for the assembly time to be above 47 minutes or below 14 minutes. What proportion of assembly times fall in these unusual categories?