Using a sampling distribution for proportions, answer the fo…

Using a sampling distribution for proportions, answer the following question and scenario.   Companies are interested in the demographics of those who listen and call in to the radio programs they sponsor. Suppose that only 20% of listeners phoning in to a morning talk show are male. If the station takes a random sample of 200 callers, what is the probability that the sample proportion of males will be at least 0.30?    upload a picture of your work OR type your answer here.  

You survey a sample of 1000 employees at a large company and…

You survey a sample of 1000 employees at a large company and record the age of each. The results are given in the frequency distribution table below.  If you select one employee at random, what is the probability the selected employee is more than 24 years old?   Age 15-24 25-34 35-44 45-54 55-64 65 and over Frequency 54 366 233 180 125 42