Question: There are 80 questions from an SAT test, and they are all multiple choice with possible answers of a, b, c, d, e. For each

There are 80 questions from an SAT test, and they are all multiple choice with possible answers of a, b, c, d, e. For each question, only one answer is correct. Find the mean and standard deviation for the numbers of correct answers for those who make random guesses for all 80 questions.

Step by Step Solution

★★★★★

3.44 Rating (183 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

8002... View full answer

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 Elementary Statistics Excel Questions!

Rewrite these sentences to reflect your audience's viewpoint. a. Your e-mail order cannot be processed; we request that you use the order form on our website instead. b. We insist that you always...

Are the values found in Exercise 2 statistics or parameters? Why? Exercise 2 There are 80 questions from an SAT test, and they are all multiple choice with possible answers of a, b, c, d, e. For each...

Using the same SAT questions described in Exercise 2, is 20 a significantly high number of correct answers for someone making random guesses? Exercise 2 There are 80 questions from an SAT test, and...

Using the same SAT questions described in Exercise 2, is 8 a significantly low number of correct answers for someone making random guesses? Exercise 2 There are 80 questions from an SAT test, and...

answer the questions 1. Is a probability distribution defined if the only possible values of a random variable are 0, 1, 2, 3, and P(0) = P(1) = P(2) = P(3) = 1/3? 2. There are 80 questions from an...

answer the questions hapter Quick Quiz 1. Is a probability distribution defined if the only possible galues of a random variable are 0, 1, 2, 3, and 13(0)": P(1) = [3(2) = P(3) = 1/3? 2. There are 80...

There are 100 questions from an SAT test, and they are all multiple choice with possible answers of a, b, c, d, e. For each question, only one answer is correct. Find the mean number of correct...

STC 4G 8:30 AM CFEFABE9E3169160FD76144D74...h Question 3: Multiple Choice Questions Answer ALL questions (Total 40 marks) Multiple-choice comprises 10 questions or statements each of which is...

This is due on April 3rd, i believe it is relatively simple with many multiple choice and true/false answers. Question 1 1. 1. The most common motive for adding fixed assets to the firm is: a....

Only pseudo code 1. Question 1: Consider the following context free grammar S- aSjaSbSje. Prove the following by induction: This CFL language accepts all strings so that every prefix has at least as...

Binomial Probability Formula. In Exercises 13 and 14, answer the questions designed to help understand the rationale for the binomial probability formula. 13. Guessing Answers Standard tests, such as...

You are searching for a high wage from a wage distribution that is uniform on the interval (5, 8). The cost of each search is 0.06. What is the smallest wage you should accept?

Hogue Sports Hut provides individual instruction and coaching to children participating in the city's baseball, softball, basketball, and soccer youth leagues. Last year's results were as follows:...

Sometimes a result that is statistically significant does not have practical significance. Is this more likely to happen when the sample size is very large or when it is very small? Explain.

1.Q-7 If the demand for loanable funds increases, what will likely happen to the interest rate?

For its Music 360 survey, Nielsen Co. asked teenagers and adults how each group has listened to music in the past 12 months. Nearly two-thirds of U.S. teenagers under the age of 18 say they use...

The Center for Medicare and Medical Services reported that there were 295,000 appeals for hospitalization and other Part A Medicare service. For this group, 40% of first-round appeals were successful...

A Randstad/Harris interactive survey reported that 25% of employees said their company is loyal to them (USA Today, November 11, 2009). Suppose 10 employees are selected randomly and will be...

Question 1 Shinoda Corp, has 9.34 percent coupon bonds making annual payments with a YTM of 6.71 percent. The current yield on these bonds is 7.63 percent. How many years do these bonds have left...

Best Co. has 100 million common shares outstanding currently selling for $40/share. It has a dividend yield of 3% (hint: dividend yield is calculated as dividends paid in the last 12 months divided...

Here is some price information on Fincorp stock. Suppose first that Fincorp trades in a dealer market. Bid Asked 55.25 55.50 Suppose you have submitted an order to your broker to buy at market. At...