J =>
BFW Publishers
Kristen is researching failures in the restaurant business. In the city where she lives, the probability that an independent
restaurant will fail in the first year is 49%. She obtains a random sample of 62 independent restaurants that opened in her city
more than one year ago and determines if each one had closed within a year.
What are the mean and standard deviation of the number of restaurants that failed within a year? Please give your answers
precise to two decimal places.
σ =>
