Isabelle and taylor work together on a group quiz that has, Ask an Expert

Statistics

Isabelle and Taylor work together on a group quiz that has 15 multiple-choice questions, each with four choices for the possible answer. Unfortunately, neither had time to study, so they decide to randomly guess at all answers. Isabelle guesses answers for the first 7 questions, and Taylor guesses for the other 8 questions.

a. For any single question on the quiz, what is p = chance of a correct guess?

b. Let X = number of correct guesses that Isabelle makes. What are the values of n and p for the binomial distribution that describes X?

c. Let Y = number of correct guesses that Taylor makes. What are the values of n and p for the binomial distribution that describes Y?

d. Consider X + Y = total correct guesses that Isabelle and Taylor make. What are the values of n and p for the binomial distribution that describes X + Y?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92226112

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

A rainstorm in portland oregon wiped out the electricity

A rainstorm in Portland, Oregon, wiped out the electricity in 10% of the households in the city. Suppose that a random sample of 70 Portland households is taken after the rainstorm. Estimate the number of households in t ...

According to a field poll 276 out of 615 of california

According to a Field Poll, 276 out of 615 of California adults feel that "education and our schools" is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of C ...

A study indicates that the weights of adults are normally

A study indicates that the weights of adults are normally distributed with a mean of 140 lbs and a standard deviation of 25 lbs. Find a value of weight x such that only 20% of adults weigh less than that. A. 136 B.190 ...

The acme insurance company has two types of customers

The ACME Insurance Company has two types of customers, careful and reckless. A careful customer has an accident during the year with probability 0.01. A reckless customer has an accident during the year with probability ...

Please help me study by helping me with this questionnbspif

Please help me study by helping me with this question. If D 0 = $3.50, g (which is constant) = 6.0%, and P 0 = $80, what is the stock's expected dividend yield for the coming year? The formula for calculating the first ...

Useby using we need write the Useby using we need write the answer

Useby using we need write the answer download.file("http://www.openintro.org/stat/data/ames.RData", destfile = "ames.RData") load("ames.RData") area price I need how to Get a sample with a size of 100, and find the sampl ...

1 coal is carried from a mine in west virginia to a power

1. Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 89 tons of coal into each car. The actual weights of coal loaded ...

We perform a statistical test to examine if the mean

We perform a statistical test to examine if the mean lifetime of lab mice increases when given vitamin B12 compared to a placebo. Which of the following is a Type I error? Conclude that Vitamin B12 increases the mean lif ...

Calculating project ocfsummer time inc is considering a new

Calculating Project OCF. Summer Time, Inc. is considering a new 3-year project that requires an initial fixed asset investment of 3.9 million. The fixed asset will be depreciated straight line to zero over its three-year ...

The following frequency table summarizes the distances in

The following frequency table summarizes the distances in miles of 100 patients from a regional hospital. Distance Frequency 0-2 30 2-4 35 4-6 20 6-8 ...

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