5,395 Answered Questions for the topic probability

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
Probability Statistics

10/05/21

PLEASE HELP ME WITH THIS
According to a 2009 Reader's Digest article, people throw away about 13% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 194 grocery... more
Follows • 1
Expert Answers •1
Probability Math

10/05/21

Plz Help Me Probability
A package of 30 wildflower seeds contains 15 black-eyed Susan seeds.What is the probability that a randomly selected seed will be a black-eyed Susan seed?Write your answer as a fraction or whole... more
Follows • 1
Expert Answers •1
Probability Math Elementary Math

10/05/21

Venn Diagram Problem
A cellphone company has 1000 employees, 615 are male, 682 are single, and 505 are union members. 475 are single male and 87 are single and union members, 120 employees are single male and union... more
Follows • 1
Expert Answers •1
Probability Statistics

10/05/21

Four marbles were drawn randomly from a box containing 5 red marbles, 4 blue marbles and 2 green marbles.

(a) How many ways can the four marbles be drawn from the box?(b) What is the probability of finding them all red?(c) What is the probability of finding them all blue?(d) What is the probability of... more
Follows • 1
Expert Answers •1
Probability Math Algebra 1 Precalculus

10/03/21

What is the greatest common factor of the polynomial of 15x^4 Y^3+6x^3 Y^4+21x^2 Y^5
NEED IT ASAP
Follows • 1
Expert Answers •1
Probability

10/02/21

Which probability distribution favors the most recent data?
I know that Gaussian (Normal) distribution has two parameters (mean and variance) which are updated with every new data point. But in the Normal distribution, the old data have a similar effect on... more
Follows • 1
Expert Answers •1

10/01/21

Assume that a sample is used to estimate a population proportion .

Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 101 with 48 successes. Enter your answer as an open-interval (i.e.,... more
Follows • 1
Expert Answers •1
Probability Math Algebra 2 Calculus

10/01/21

Assume that a sample is used to estimate a population proportion .

Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 107 with 58 successes. Enter your answer as a tri-linear inequality using... more
Follows • 1
Expert Answers •1

10/01/21

Out of 300 people sampled, 264 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids.
Out of 300 people sampled, 264 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids.Give your answers as decimals, to three places
Follows • 1
Expert Answers •1
Probability Math Algebra 2 Calculus

10/01/21

If n = 280 and ˆ p (p-hat) = 0.7, construct a 90% confidence interval.
Give your answers to three decimalsIf n = 280 and ˆp (p-hat) = 0.7, construct a 90% confidence interval.
Follows • 1
Expert Answers •1
Probability Math Calculus Geometry

10/01/21

Out of 500 people sampled, 305 preferred Candidate A. Round to three decimals. Based on this estimate, what proportion (as a decimal) of the voting population ( p ) prefers Candidate A?
Out of 500 people sampled, 305 preferred Candidate A. Round to three decimals.Based on this estimate, what proportion (as a decimal) of the voting population (p) prefers Candidate A?Answer:Compute... more
Follows • 1
Expert Answers •1
Probability

09/30/21

You have 7 pennies, 2, nickels, and 7 dimees. Without replacement, what is the probability of choosing 2 coins that total 10 cents.
Follows • 1
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.