5,341 Answered Questions for the topic probability

10/24/21

How to find the Var(X) for a sum of a rolled die and a 3 sided spinner?
A fair 6-sided die has the numbers −1, −1, 0, 0, 1, 2 on its faces. A fair 3-sided spinner has edges numbered −1, 0, 1. The die is thrown and the spinner is spun. The number on the uppermost face... more
Follows • 1
Expert Answers •1
Probability Statistics

10/23/21

Suppose that 25% of all voters prefer Candidate A. If 6 people are chosen at random for a poll, what is the probability that exactly 2 of them favor Candidate A?

Follows • 1
Expert Answers •1
Probability

10/22/21

Probability Question for a research project
The probability of winning the PowerBall Jackpot is one in 292,201,338. What is the probability of winning it 5 times in a row?7 times in a row?10 times in a row?
Follows • 1
Expert Answers •1
Probability

10/19/21

Random Variables Probability
Compute probabilities on random variables:a- and compute the probablities X= xb- compute the probabilities X<=x
Follows • 2
Expert Answers •1
Probability Statistics

10/19/21

Use the IQR to determine if any of the data in the data set are outliers. {23,80,43,23,0,20,23,23,20,28} Any data value less than or greater than are outliers.

Follows • 1
Expert Answers •1
Probability Statistics

10/18/21

Complete the probability distribution table. (Report probabilities accurate to 4 decimal places.)Find the mean of this probability distribution. (Appropriate rounding rules apply.)

The Sky Ranch is a supplier of aircraft parts. Included in stock are 6 altimeters that are correctly calibrated and two that are not. Three altimeters are randomly selected without replacement. Let... more
Follows • 1
Expert Answers •1
Probability Statistics Distribution

10/18/21

Complete the probability distribution table. (Report probabilities accurate to 4 decimal places.) Find the mean of this probability distribution. (Appropriate rounding rules apply.)

The Sky Ranch is a supplier of aircraft parts. Included in stock are 6 altimeters that are correctly calibrated and two that are not. Three altimeters are randomly selected without replacement. Let... more
Follows • 1
Expert Answers •1
Probability Math Statistics

10/16/21

Statistics Probability

Thirty (30) students registered for a Statistics class; ten (10) men and twenty (20) women. Five (5) of the men and two (2) of the women are from out of town. For the following questions determine... more
Follows • 1
Expert Answers •1
Probability Math Statistics Logic

10/15/21

What is the group size that will accomodate a class of 27 students based on this problem below?
A student-teacher wants to divide a class into groups to work on a project. He'd like to have somewhere between 4 and 6 students in each group and wants every group to have the same number of... more
Follows • 1
Expert Answers •1
Probability

10/15/21

Assume the cans of coke
Assume that cans of Coke are filled so that the actual amounts are normally distributed with a mean of 12.00 oz and a standard deviation of 0.11 oz Find the probability that a sample of 5 cans will... more
Follows • 1
Expert Answers •1
Probability

10/13/21

MATH PLZ HELP me

You pick a card at random, put it back, and then pick another card at random. 4 5 6 7 What is the probability of picking a 4 and then picking a number greater than 5?Write your answer as a percentage. more
Follows • 1
Expert Answers •1
Probability

10/13/21

An ordinary (fair) die is a cube with the numbers 1 through 6. Imagine that such a die is rolled twice and the face values of the two rolls are added together. Event A: the sum is greater than 8.

Follows • 1
Expert Answers •1
Probability Statistics

10/11/21

Statistics Probability Distribution

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 46 ounces and a standard deviation of 10 ounces.Use the Empirical Rule,... more
Follows • 1
Expert Answers •1
Probability Math Statistics

10/11/21

A probability questions with a few factors (pure curiosity, not homework)
What is the probability of two people who were born in different states (let’s call them N and C) having the same birthday (June 10) and their mothers also have the same birthday (January 13).... more
Follows • 1
Expert Answers •1
Probability

10/10/21

help me please I have a 48 in math
A shipment of 11 printers contains 3 that are defective. Find the probability that a sample of size 3​, drawn from the 11​, will not contain a defective printer.
Follows • 1
Expert Answers •1
Probability

10/10/21

I don't know how to solve it. It has to be rounded to the nearest thousandth as​ needed
A container contains 6 diesel engines. The company chooses 4 engines at​ random, and will not ship the container if any of the engines chosen are defective. Find the probability that a container... more
Follows • 1
Expert Answers •1
Probability Statistics Act Math

10/09/21

What is the probability that the selected garment is a sock?
Tomas enters his darkened room and randomly selects a garment from achest of drawers with two drawers. One of the drawers has 6 socks and 6 T-shirts and theanother drawer has 2 socks and 3 shorts.
Follows • 1
Expert Answers •2
Probability

10/08/21

What is a good way to resolve this?
The random variable X has a probability density function fX (x) = 1/3 δ(x)+ 2/3 δ(x−2). Another random variable, Y , has a probability density function fY (y) = 1/2 δ(y) + 1/2 δ(y − 3). X and Y... more
Follows • 1
Expert Answers •1

10/08/21

Please helppp kindly
In a group of students, the probability that they get greater than 90% on their statistics test is 0.42, theprobability that they slept at least 8 hours the night before the test is 0.516, the... more
Follows • 1
Expert Answers •1

10/08/21

Need to find help in solving probability question
. A professor gives only two types of exams and designs only two types of questions, “easy” and “hard”. You will get a hard exam with probability 0.80. The probability that the last question on the... more
Follows • 1
Expert Answers •1
Probability

10/07/21

Suppose you have 6 green cards and 5 yellow cards. The cards are well shuffled. You randomly draw two cards with replacement.
G1 = The first card drawn is greenG2 = The second card drawn is greena. Calculate P(G1 and G2)b. Calculate P(at least one green)c. Calculate P(G2 | G1)
Follows • 1
Expert Answers •1
Probability Math Statistics

10/06/21

Statistics and Probabilty
Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Enter a number. Round your answer to four decimal... more
Follows • 2
Expert Answers •1
Probability Maths

10/06/21

Probability question
If on average 5,000 people in the world get bitten by spiders every year, then what is the probability that a person chosen at random may have been bitten by a spider last year?
Follows • 1
Expert Answers •1
Probability Math Statistics

10/05/21

Probability and Statistics
Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Enter a number. Round your answer to four decimal... more
Follows • 1
Expert Answers •1
Probability Statistics

10/05/21

PLEASE HELP ME WITH THIS QUESTION
It is known that 23% of people ride public transport without paying for it. We talk to 81 people who have been on public transport in the last month. What is the probability that the sample... more
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.