# Question

The amount of time it takes for a student to complete a statistics quiz is uniformly distributed between 30 and 60 minutes. One student is selected at random. Find the probability of the following events.

a. The student requires more than 55 minutes to complete the quiz.

b. The student completes the quiz in a time between 30 and 40 minutes.

c. The student completes the quiz in exactly 37.23 minutes.

a. The student requires more than 55 minutes to complete the quiz.

b. The student completes the quiz in a time between 30 and 40 minutes.

c. The student completes the quiz in exactly 37.23 minutes.

## Answer to relevant Questions

The weekly output of a steel mill is a uniformly distributed random variable that lies between 110 and 175 metric tons.a. Compute the probability that the steel mill will produce more than 150 metric tons next week.b. ...X is normally distributed with mean 100 and standard deviation 20. What is the probability that X is greater than 145?Refer to Exercise 8.40. If we wanted to be sure that 98% of all bulbs last longer than the advertised figure, what figure should be advertised?Refer to Exercise. Find the amount of sleep that is exceeded by only 25% of students.In Exercise, University and college students average 7.2 hours of sleep per night, with a standard deviation of 40 minutes. If the amount ...Mensa is an organization whose members possess IQs that are in the top 2% of the population. It is known that IQs are normally distributed with a mean of 100 and a standard deviation of 16. Find the minimum IQ needed to be a ...Post your question

0