Question: Assume that x is a binomial random variable with n = 20 and p = .5. Use Table I of Appendix B and the normal

Assume that x is a binomial random variable with n = 20 and p = .5. Use Table I of Appendix B and the normal approximation to find the exact and approximate values, respectively, of the following probabilities: a. P(x 9) b. P(x11) C. P(8 x 11)

a. P(x 9) b. P(x11) C. P(8 x 11)

Step by Step Solution

★★★★★

3.50 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Business Statistics Questions!

4.4 Understanding the Principles 4.1 4.2 What is a random variable? How do discrete and continuous random variables differ? Applying the Concepts Basic 4.3 4.4 4.5 4.6 Type of Random Variable....

1. Finding probabilities for standard normal distributions(z)4.85 & 4.872. Finding z-values 4.88, question a, b, d and e only. 4.89, Question a and b only. Finding probabilities for general normal...

Assume that x is a binomial random variable with n and p as specified in parts af that follows. For which cases would it be appropriate to use a normal distribution to approximate the binomial...

1, sect... X1 bank - Math 251, s... x Review 2 - Math 251, s... (b) Find the probability that a randomly selected Facebook user has more than 819 friends. (Round your answer to four decimal places.)...

Assume that x is a binomial random variable with n = 20 and p = .5. Use Table I of Appendix B and the normal approximation to find the exact and approximate values, respectively, of the following...

Let x be a binomial random variable with n = 15 and p = .5. a. Is the normal approximation appropriate? b. Find P(x 6) using the normal approximation. c. Find P(x > 6) using the normal...

1. Let x be a binomial random variable with n = 25 and p = 0.3. a)Is the normal approximation appropriate for this binomial random variable? b)Find the mean for x. c)Find the standard deviation for...

X is a binomial random variable with n = 72 and p = 0.90. Should the normal approximation be used to find P(X 60)? Why or why not?

X is a binomial random variable with n = 50 and p = 0.15. Should the normal approximation be used to find P(X > 10)? Why or why not?

What major physiological and biochemical properties do Archaea share with Eukarya or with Bacteria?

Consider a three-factor APT model. The factors and associated risk premiums are Factor Risk Premium Change in GNP ........... 5% Change in energy prices ....... -1 Change in long-term interest rates...

Which of the following is true about the definition of risk given in the text: Risk must be measured against some benchmark Risk as defined applies to only uncertainty about financial investments...

A publishing house offers a new book as standard or luxury edition and with or without a CD. The publisher analyzes the first 1000 orders: Let $A(B)$ the random event that a book, randomly choosen...

It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose you randomly survey 11 California residents. We are interested in the number who have...

The chance of an IRS audit for a tax return with over $25,000 in income is about 2% per year. We are interested in the expected number of audits a person with that income has in a 20-year period....

Approximately 8% of students at a local high school participate in after-school sports all four years of high school. A group of 60 seniors is randomly chosen. Of interest is the number who...

If you invest $400 at the end of each year, how much will you have at the end of 11 years with an interest rate of 8% compounded semi-annually?

An investment policy is offering $10,000 per year forever. If the required return on this investment is 15 percent, how much will you pay for the policy?

4) An equipment supply manager at a large outlet needs to prepare a direct materials budget. The budgeted production amounts to 5,200 units and each unit requires 2 lbs of materials. The desired...