User Account

All Pages

Intersection and conditional probability

Assignment Help Basic Statistics
Reference no: EM13103023

Suppose that a certain college class contains 45 students. Of these, 26 are sophomores, 25 are chemistry majors, and 7 are neither. A student is selected at random from the class.

a) What is the probability that the student is both a sophomore and a chemistry major?

b) Given that the student selected is a chemistry major, what is the probability that he is also a sophomore?

Write your responses as fractions.

Can you please provide spreadsheet for future?

Reference no: EM13103023

Questions Cloud

Information about basic statistics and probability : A manufacturer of batteries for "kids' toys" wishes to investigate the length of time a battery will last. Tests results on a sample of 10 batteries indicated a sample mean of 5.67 and a sample standard deviation of 0.57.
What is the charge q2 on the outer sphere : Two concentric hollow metal spheres have radii r1=1.50E-2 m and and r2=6.80E-2 m. At a point 9.80E-2 m from the center of the spheres, the electric field is directed outward and has a magnitude 2.08E+2 N/C. At a distance 5.80E-2 m from the center,..
Predicting win-loss patterns for seven possible games : Suppose the world series is about to begin. Some people get together and each decide to predict different win-loss patterns for the seven possible games during the coming series.
What polarity of charge must the rod possess : A 2.75-gram air inflated balloon is given an excess negative charge, q1 = -3.00 × 10-8 C, by rubbing it with a blanket. It is found that a charged rod can be held above the balloon at a distance of d = 5.20 cm to make the balloon float. In order f..
Intersection and conditional probability : Suppose that a certain college class contains 45 students. Of these, 26 are sophomores, 25 are chemistry majors, and 7 are neither. A student is selected at random from the class.
By how much has gravitational potential energy changed : A 1400 wrecking ball hangs from a 20 -long cable. The ball is pulled back until the cable makes an angle of 30.0 with the vertical. By how much has the gravitational potential energy of the ball changed?
Probability of lottery winnings : What is the probability you will win any money in the state lottery and the probability that you will win at least $100
Examine influence of legal issues-ethics on management : Examine the influence that legal issues, ethics, and corporate social responsibility have had on management planning at chosen company. Give at least one example for each.
Calculate the standard error of the mean : The consultant is given a sample of 225 batteries to test. A. Calculate the standard error of the mean.

Reviews

Write a Review

Basic Statistics Questions & Answers

  One sample mean by t-test

To test this notion, eight paid volunteers were placed (individually) in a room in which there was no light from the outside and no clocks or other indications of time.

  Probability distribution problem regarding businessman

At a board meeting of 20 businessmen, all of whom wear ties, what is the probability that:

  The probability she did not receive any email

An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of two emails per hour. Suppose the arrival of these emails is approximated by the Poisson distribution.

  Underlying average of time series

When the underlying average of a time series is very stable and there is no trend, cyclical, or seasonal influences,

  Develop an estimated regression equation

Use regression analysis to develop an estimated regression equation that could be used to predict the value score given the price of the car.

  Probability of getting four hits in a particular game

Joe Mauer of the Minnesota Twins had the highest batting average in the 2009 Major League Baseball season. His average was .461. So assume the probability of getting a hit is .461 for each time he batted. In a particular game, assume he batted fou..

  Maximum error of estimate as the sample size gets larger

What happens to the Maximum Error of Estimate as the sample size gets larger?

  Determining weighted percentages

A business operates with 9 locations. Each year, each location is allotted an overtime budget based on the previous years' activity. The total overtime budget for all 9 locations is $10 million.

  Solution of conditional probability

Let A be the event that a student is enrolled in an accounting course, and let S be the event that a student is enrolled in a statistics course.

  What is the finite population correction

Find out the finite population correction (FPC).With a population size of 1,000 and a planned sample size of 200, what is the finite population correction.

  Performance on spatial skills task

For the following data, determine whether or not right-hemisphere damage results in significantly reduced performance on the spatial skills task. Test with alpha set at .05 with one tail. The data are as follows:

  Normal distribution with mean

The scores of college-bound senior men on the math part of the SAT followed a normal distribution with mean 527 and standard deviation 116.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd