Find the probability of guessing a exactly three answers, Ask an Expert

Statistics

You are taking a multiple-choice quiz that consists of five questions. Each question has four possible answers, only one of which is correct. To complete the quiz, you randomly guess the answer to each question. Find the probability of guessing (a) exactly three answers correctly, (b) at least three answers correctly, and (c) less than three answers correctly.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9409492

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

A bottle of water is supposed to have 12 ounces the

A bottle of water is supposed to have 12 ounces. The bottling company has determined that 98% of bottles have the correct amount. Which of the following describes a binomial experiment that would determine the probabilit ...

1 summary statistics for returns on two stocks x and y are

1. Summary statistics for returns on two stocks X and Y are listed below. Mean Variance Stock X 2.83% 0.006000 Stock Y 5.98% 0.003000 The covariance of returns on stocks X and Y is 0.001500. Consider a portfolio of 80% s ...

According to the current results website the state of

According to the Current Results website, the state of California has a mean annual rainfall of 21 inches, whereas the state of New York has a mean annual rainfall of 55 inches. Assume that the standard deviation for bot ...

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 ...

There is a new treatment for smokers to stop smoking in an

There is a new treatment for smokers to stop smoking. In an experiment, 85% of 300 smokers quit after 10 days of the treatment. What is the reasonable range for the success rate p of our new treatment? Which is the 95% c ...

In the game of roulette a player can place a 7 bet on the

In the game of? roulette, a player can place a ?$7 bet on the number 18 and have a 1/38 probability of winning. If the metal ball lands on 18?, the player gets to keep the ?$7 paid to play the game and the player is awar ...

If i had to collect and assess the quality and

If I had to collect and assess the quality and appropriateness of data held by a large, multi-national organization. What steps should I take? How would I address network, security, and ethical considerations when decidi ...

Assume that 8 of people have ab blood a hospital blood bank

Assume that 8% of people have AB blood. A hospital blood bank needs ABblood so the blood bank begins checking potential donors. Use this Excel file geometric probabilities (enable the macro after opening the file) or thi ...

A clothing quality director determines the accuracy of nfl

A clothing quality director determines the accuracy of NFL Logos on t-shirts. 9% of the shirts made that day are defective. The shirts are sold in packages of 10. Find the probability that in one randomly selected packag ...

Problem arrival of vehicles at new jersey turnpike toll

Problem: Arrival of vehicles at New Jersey Turnpike toll booth on Saturdays at dawn is modeled as a Poisson Arrival process with a rate of 1.21 vehicles per minute. Let X be a random variable that records the number of a ...

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