An allergy medication is successful for 70 of all patients, Ask an Expert

Statistics

An allergy medication is successful for 70% of all patients who use it. The medication is given to 200 patients. Let X = number of successful treatments.

a. What are the mean and standard deviation of X?

b. Use the normal curve to approximate the probability that X is 128 or less.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92226121

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

In a class there are 7 girls and 5 boys the median age of

In a class there are 7 girls and 5 boys. The median age of the 7 girls is 12 and the median age of the 5 boys is 14. Additionally, you know that there are 3 girls with age greater than 14 and 2 boys with age less than 12 ...

1 if there are 150 values in a data set how many classes

1) If there are 150 values in a data set, how many classes should be created for a frequency histogram? A. 5 B. 6 C. 7 D. 8 E. 9 2) . If x is a binomial random variable where n = 100 and p = 0.2, find the probability tha ...

Suppose you perform a multiple regression to predict crime

Suppose you perform a multiple regression to predict crime rate in a state and includes as indicators of predictions the homeownership rate divorce rate and the personal bankruptcy. Explain how to conduct a test of hypot ...

At a college 66 of courses have final exams and 56nbsp of

At a college, 66 % of courses have final exams and 56 % of courses require research papers. Suppose that 45 % of courses have a research paper and a final exam. Find the probability that a course has NONE of these two r ...

Monroe inc is evaluating a project the company uses 138

Monroe, Inc, is evaluating a project. The company uses 13.8 percent discount rate for this project. cost and cash flows are shown in the table. What is the NPV of the project? year. Project 0. ($11,368,000) 1. $2,187,590 ...

There are twenty stores for a grocery chain in the

There are twenty stores for a grocery chain in the Mid-Atlantic region. The regional executive wants to visit five of the twenty stores. She asks her assistant to choose five stores and arrange the visit schedule. (Pleas ...

Stock valuationsuppose you know that a companys stock

Stock Valuation Suppose you know that a company's stock currently sells for $72 per share and the required return on the stock is 11.5 percent. You also know that the total return on the stock is evenly divided between a ...

A 36-year maturity bond with par value 1000 makes

A 36-year maturity bond with par value $1,000 makes semiannual coupon payments at a coupon rate of 14%. What is the EQUIVALENT annual yield to maturity of the bond if the bond sells for $1,080? A 31-year maturity, 9.5% ...

Why is it that some people make very high returns on the

Why is it that some people make very high returns on the stock market if it is so efficient? Is it more difficult to reconcile very high returns with efficient markets if the same people make extraordinary returns year a ...

Many high school students take the ap tests in different

Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology exam 84,199 of them were female. In that same year, of the 211,693 students who took the calcu ...

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