Homework answers / question archive / Weekly losses last year had a normal distribution with mean 100 and variance 400

Weekly losses last year had a normal distribution with mean 100 and variance 400

Finance

Share With

Weekly losses last year had a normal distribution with mean 100 and variance 400. Let X ? denote the average weekly loss this year (assume that there are 52 weeks in a year and that losses in different weeks are independent). If losses this year have the same distribution as last, except are 20% greater due to inflation, what is the probability that X ? is less than 124?