Of all individual tax returns filed in the United States during the 2009 tax filing season, 15.8%

Question:

Of all individual tax returns filed in the United States during the 2009 tax filing season, 15.8% were prepared by H&R Block. For a randomly selected sample of 900 tax returns filed during this period, use the normal approximation to the binomial in determining the probability that between 110 and 140 of these returns were prepared by H&R Block. 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...