The wingspans of recently cloned monarch butterflies follow a normal distribution with mean 9 inches and standard

Question:

The wingspans of recently cloned monarch butterflies follow a normal with mean 9 inches and standard deviation 0.75 inches. What proportion of the butterflies has a wingspan
a. Less than 8 inches?
b. Wider than 10 inches?
c. Between 8 and 10 inches?
d. Ten percent of the butterflies have a wingspan wider than how many inches?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...