using a Binomial Distribution calculator
I receive about 20 ± 3 (n = 40) robo-calls per week. (note that 3 is the standard deviation based on 40 weeks) (a) Assuming that the calls are random, what is the probability that I'll receive exactly 15 robo-calls next week? (b) What is the probability that I'll receive fewer than 15 calls next week? (c) Next month, how likely am I to receive fewer than 60 calls? (e) During the first week of July, I received only 12 calls. Should I assume that the callers left for the 4th of July holiday, or is an extreme value such as 12 calls likely based on chance alone? (f) Based on data I collected over 40 weeks, do the calls appear to be aggregated, random, or evenly distributed? Calculate a statistic to support this answer