Determining probability of marks on statistics midterm

Reference no: EM1320852

Q1) Time it takes for statistics professor to mark his midterm test is normally distributed with mean of 4.8 minutes and standard deviation o f1.3 minutes.

There are sixty students in professor's class. Determine the probability that he requires more than 5 hours to mark all midterm tests?( Midterm tests of 60 students in this year's class can be considered random sample of many thousands of midterm tests professor has marked and will mark)

Marks on statistics midterm test are normally distributed with mean of 78 and a standard deviation of 6.

a) What proportion of class has midterm mark of less than 75?

b) Determine the probability that class of 50 has average midterm mark that is less than 75?

Reference no: EM1320852

Questions Cloud

Determining the probability of mean height : Determine the probability that mean height of random sample of 100 women is greater than 66 inches?

Determine the probability on rating : Determine the probability on rating

Evaluating the rate of return for the new equipment : Converse Elucidate how you might go about evaluating the rate of return for the new equipment.

Ethical considerations of marketing : Describe ethical considerations with regard to marketing to children. When the marketers' pitch includes a cause component

Determining probability of marks on statistics midterm : Marks on statistics midterm test are normally distributed with mean of 78 and a standard deviation of 6. Determine the probability that class of 50 has average midterm mark that is less than 75?

Find the number of hours that represent the 40 percentile : Find the number of hours that represent the 40 percentile.

Compute the price elasticity of demand for dvd players : Illustrate what additional information is needed for you to be able to compute the price elasticity of demand for DVD players.

Collaborative style : What factors and issues can you think of that may indicate that a collaborative style would be effective?

Identify a product and service you know : Identify a product and/or service you know and use, understanding the reasons you use this product and/or service.

User Account

All Pages