What is the probability that all six are extroverts

Assignment Help Basic Statistics

Reference no: EM13143491

It was reported that approximately 45% of all university professors are extroverted. Suppose you have classes with 6 different professors.

a) What is the probability that all 6 are extroverts?
b) What is the probability that none of your professors are extroverts?
c) What is the probability that at least 2 of your professors are extroverts?
d) In a group of six professors selected at random, what is the expected number of extroverts? what is the standard deviation of the distributions?

Reference no: EM13143491

Questions Cloud

Marketing plan• pricing• promotion• distribution : Marketing Plan• Pricing• Promotion• Distribution

Estimate the manufacturing costs : Estimate the manufacturing costs if Robert's produces 100,000 widgits in January. Estimate the manufacturing costs if Robert's produces 120,000 widgits in February.

Direct seeding is a better : Direct seeding is a better way to conserve our soil which is, after all, a non-renewable resource. Direct seeding farmers are true stewards of the land.

What is the volume of 290. ml of oxygen gas : What is the volume of 290. mL of oxygen gas at 112°C and 790. mm Hg if the conditions are adjusted to STP? Assume the amount of gas is held constant.

What is the probability that all six are extroverts : It was reported that approximately 45% of all university professors are extroverted. Suppose you have classes with 6 different professors. What is the probability that all 6 are extroverts?

Because low marital satisfaction : Because low marital satisfaction should lead to divorce, Professor Rogers checked his measure of marital satisfaction by examining whether couples with low marital satisfaction scores later obtained divorces and those with high levels of marital sati..

Sales dollars in the month of the sale : Ruby's expects to collect 30% of the sales dollars in the month of the sale and 70% in the month following the sales.

How much will you be able to withdraw each year : To make the money last, you have decided to invest it at 12% and withdraw it in 20 equal amounts over the next 20 years. Your first withdrawal will be one year from today. How much will you be able to withdraw each year?

Explain the difference between saliva and sputum : What specimens are of value in making a laboratory diagnosis of bacterial pneumonia? Why? Explain the difference between saliva and sputum?

User Account

All Pages