Random samples of size n = 60 were selected from abinomial population with p = 0.2. Use the normaldistribution to approximate the following probabilities. (Roundyour answers to four decimal places.)
(a)Â Â Â Â
P(p̂ ≤ 0.22) =
(b)Â Â Â Â
P(0.18 ≤ p̂ ≤ 0.22) =
