Question

 If we know that the length of time it takes a college student to find a parking spot in the library parking lot follows a normal distribution with a mean of 3.5 minutes and a standard deviation of 1 minute,

(i) find the probability that a randomly selected college student will find a parking spot in the library parking lot in less than 3 minutes.

a) 0.3551 b) 0.3085c) 0.2674d) 0.1915

(ii) find the probability that a randomly selected college student will take between 2 and 4.5 minutes to find a parking spot in the library parking lot.

a) 0.0919b) 0.2255c) 0.4938d) 0.7745

(iii) 75.8% of the college students will take more than how many minutes when trying to find a parking spot in the library parking lot?

a) 2.8 minutes   b) 3.2 minutes   c) 3.4 minutes     d) 4.2 minutes

Answer 1