he annual precipitation for one city is normally distributed with a mean of 399 inches and a standard deviation of 3.3 inches. In what percentage of years is precipitation in the city between 392.4 inches and 405.6 inches?

Question

he annual precipitation for one city is normally distributed with a mean of 399 inches and a standard deviation of 3.3 inches. In what percentage of years is precipitation in the city between 392.4 inches and 405.6 inches?
 Hard help?

Reiny · Answer

you can use the same website I gave you in a previous post to answer your last two questions this time use "area from a value" and enter the values in "between"