The distribution of the height of students in a large class, Ask an Expert

Statistics

The distribution of the height of students in a large class is roughly bell-shaped. The average height is 68 inches, and approximately 95% of the heights are between 62 and 74 inches. Thus, the standard deviation of the height distribution is approximately.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9374330

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

A car gets involved in an accident 80 of the time if it is

A car gets involved in an accident 80% of the time if it is defective. If it is not defective, the probability reduces to 40%. 30% of all cars are defective. If a car is involved in an accident, what is the probability t ...

In a study of helicopter usage and patient survival among

In a study of helicopter usage and patient? survival, among the 55,032 patients transported by? helicopter, 227 of them left the treatment center against medical? advice, and the other 54,805 did not leave against medica ...

The local police department must write an average of 5

The local police department must write an average of 5 traffic tickets each day to keep department revenues at budgeted levels. Suppose the number of tickets written per day follows a Poisson distribution with a mean of ...

Suppose a retailer claims that the average wait time for a

Suppose a retailer claims that the average wait time for a customer on its support line is 179 seconds. A random sample of 57 customers had an average wait time of 169 seconds. Assume the population standard deviation fo ...

1 prince georges county publicnbspschools wants to access

1) Prince George's County Public Schools wants to access the effectiveness of its new 1st grade reading program. Ten 1st grade classrooms are randomly selected from across the county. What kind of sampling method is bein ...

Why are scattered plots necessary when investigating the

Why are scattered plots necessary when investigating the relationship between quantitative variables?

Assume that showing a car is a bernoulli trial and each

Assume that showing a car is a Bernoulli trial, and each time she shows a car, there is a probability of 0.15 that the customer will buy the car. The saleswoman has a goal of selling at least one car a week. 1) How many ...

Perform a conversion to compare costs between the two

Perform a conversion to compare costs between the two programs below, to find out which is the more expensive program. Program A: estimated cost in constant FY13 dollars: $16M Program B: estimated cost in constant FY19 d ...

To finance additional inventory arbutus ltd is considering

To finance additional inventory, Arbutus Ltd. is considering forgoing the cash discount on all of its purchases presently offered on terms of 2/10, net 45. No payments will be stretched. Annual purchases are $9.21 millio ...

A rainstorm in portland oregon wiped out the electricity

A rainstorm in Portland, Oregon, wiped out the electricity in 10% of the households in the city. Suppose that a random sample of 70 Portland households is taken after the rainstorm. Estimate the number of households in t ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert