What is the variance and standard deviation

Assignment Help Mathematics

Reference no: EM131165893

What is the variance and standard deviation for the number of right answers for someone taking a 100 question short answer test where each answer is graded either correct or incorrect if the person knows 80% of the subject material for the test the test and answers correctly each question she knows? Should we be surprised if such a student scores 90 or above on the test?

Reference no: EM131165893

Questions Cloud

What is the rate of return on the stock : Investors expect the market rate of return this year to be 12%. A stock with a beta of .5 has an expected rate of return of 10%. If the market return this year turns out to be 9%, what is the rate of return on the stock?

Are there particular applications in pharmaceutical industry : What are the key areas in which contract law has evolved from traditional concepts, to addressing equitable solutions or complex modern day transactions and structures?

Create a set of use cases for the of-the-month club system : Create a set of use cases for the following system: Of-the-Month Club (OTMC) is an innovative young firm that sells memberships to people who have an interest in certain products.

Under variable or absorption costing : Required: Under each of the following conditions, state (a) whether operating income is higher under variable or absorption costing and (b) the amount of the difference in reported operating income under the two methods. Treat each condition as an i..

What is the variance and standard deviation : What is the variance and standard deviation for the number of right answers for someone taking a 100 question short answer test where each answer is graded either correct or incorrect if the person knows 80% of the subject material for the test th..

Manager for an insurance company : As a portfolio manager for an insurance company, you are about to invest funds in one of three possible investments: 10-year coupon bonds issued by the U.S. Treasury, 20-year zero-coupon bonds issued by the Treasury, or

Compute the value of a european call option on the stock : Consider a 1-period binomial model with R=1.02, S0=100, u=1/d=1.05. - Compute the value of a European call option on the stock with strike K=102.

Is plaintiff likely to succeed on claim against health plan : Is the plaintiff likely to succeed on her claim against Dr. Green for lack of informed consent in failing to disclose the risk of prescribing the incorrect dosage?

What is the expected value of the random variable x - 3 : What is the expected value of the random variable X - 3? What is the expected value of (X - 3)2? What is the variance of X?

User Account

All Pages