standard deviation

UB ForumCategory: Statisticsstandard deviation
Debbie HarryDebbie Harry Staff asked 5 years ago

The owner of a computer repair shop has determined that their daily revenue has mean $7200 and standard deviation $1200. The daily revenue totals for the next 30 days will be monitored. What is the probability that the mean daily revenue for the next 30 days will be between $7000 and $7500?

A) 0.8186

B) 0.9147

C) 0.2667

D) 0.7333

1 Answers
Best Answer
Selena TateSelena Tate Staff answered 5 years ago

The owner of a computer repair shop has determined that their daily revenue has mean $7200 and standard deviation $1200. The daily revenue totals for the next 30 days will be monitored. What is the probability that the mean daily revenue for the next 30 days will be between $7000 and $7500?
Solution:  0.7333