4) Suppose Cal Crouk is a crooked politician. Suppose that, on average, he lies 2 times ina five minute stretch. Suppose Cal has a half hour speech planned, and let X be thenumber of lies in Cal's speech.a) How is X distributed?b) What is the mean and variance of Xc) What is the probability that Cal lies exactly 20 times?

Answered: Image /qna-images/answer/d0723b7f-aa94-43e4-afa7-751d1a3dade6.jpg

Answered: 4) Suppose Cal Crouk is a crooked…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

16. Let X be the number of "6"s obtained from throwing a fair die 7 times. Find the probability of obtaining exactly three "6"'s.
42)
Delta Airlines quotes a flight time of 2 hours, 5 minutes for its flights from Cincinnati to Tampa. Suppose we believe that actual flight times are uniformly distributed between 2 hours and 2 hours, 20 minutes. b. What is the probability that the flight will be no more than 5 minutes late (to 2 decimals)? c. What is the probability that the flight will be more than 10 minutes late (to 2 decimals)? d. What is the expected flight time, in minutes?
5) Samples of size n = 2 are randomly selected with replacement from the popula- tion consisting of 2, 4, and 10, where the values represent the number of people in households. 5a) Find the mean of each of the nine samples and summarize the data in the form of a probability distribution. seroMvT as borolgo olgouq Ind upo o t te bas io 5b) Compare the population mean to the mean of the sample means in this example. Does this support the idea that sample means do not target the population means?
A committee with 3 members is to be chosen randomly from 5 boys and 7 girls and count the number of girls on the committee. a) Identify the two groups. b) In words, describe the random variable X. c) List the values of the random variable X takes on. d) What is the expected number of girls on the committee? e) Determine the standard deviation of the number of girls in the committee.
Suppose that 60% of all students currently enrolled at all California Community College campuses combined arefemale. Researchers want to do a survey, and randomly select 1000 students who are currently enrolled at CSUcampuses. Letpˆrepresent the proportion of students in the sample who are female. f) Use binomcdf( on your calculator to find the probability that between 56% and 64% are female
10. In a survey carried out it is found that 25% of the students in Uni Razak have Ducati monster 795. a. If 10 students are chosen at random find the probability that half of them have Ducati monster 795 b. If there are 3 000 students find the mean and standard deviation of students whom have Ducati monster 795
Suppose public opinion is split 65% against and 35% for increasing taxes to help balance the federal budget. Suppose also that 500 people from the population are selected randomly and interviewed. a) Find the mean and variance of the sampling distribution of the sample proportion (in favour of increase) b) Describe the sampling distribution of the sample proportion of people who are in favour of increasing taxes to help balance the federal budget. c) What is the probability the proportion favouring a tax increase is more than 30%?

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS