A survey of U.S. teenagers found that 78% have a cell phone. You randomly select 20 U.S.

Question:

A survey of U.S. teenagers found that 78% have a cell phone. You randomly select 20 U.S. teenagers and ask them whether they have a cell phone.
A binomial experiment is given. Determine whether you can use a normal to approximate the binomial If you can, find the mean and standard deviation. If you cannot, explain why.
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...