5,395 Answered Questions for the topic probability

Probability Math Statistics

02/11/22

7. Find the indicated probability. Round to three decimal places.
The participants in a television quiz show are picked from a large pool ofapplicants with approximately equal numbers of men and women. Amongthe last 11 participants there have been only 2 women.... more
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Probability Statistics

02/09/22

Stat 1880 worksheet problems
Question 1. If 𝑋 represents the number of heads obtained in three tosses of a fair coin, (Create the table for both parts)(a) Find the probability distribution of 𝑋.(b) Find the expected value and... more
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Probability Statistics

02/09/22

Help me with probability

1. Use the following information to answer the next four exercises. Recently, a nurse commented that when a patient calls the medical advice line claiming to have the flu, the chance that he or she... more
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02/08/22

DISCRETE MATHS HELP NEEDED !!
On the menu of a Chinese restaurant, there are 7 chicken dishes, 5 beef dishes, 4 seafood dishes, and 10 vegetable dishes.In how many ways can they order if at most one dish of each kind is chosen?
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02/08/22

HELP NEEDED !!! DISCRETE MATHS
In the game of poker, a player receives a subset of 5 cards, called a poker hand, from the standard deck of 52 cards. The order in which the cards are received is not important, just the actual... more
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Probability Mathematics

02/06/22

probability of rolling 6 dice
what is the probability of rolling 6 dice at once, where you'll get exactly 2 of the same pair out of 6 dice? Each die is a 6 sided die. numbering 1-6.
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Probability Statistics

02/06/22

probability and statistics
1.     Read the given data ‘TIPS.csv’ as a dataframe named Tips and answer the following question.a) In the tips dataframe, for the variable “total bill” what is the 3rd quartile and... more
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Probability Math

02/06/22

Two coins are tossed 600 times and we get two heads : 138 times, one head : 192 times ; no head : 270times. When two coins are tossed at random, what is the probability of getting : 1 head?
I am getting 6/75 or 0.08is it correct?Total outcomes = 4 x 600 = 24001 head= 192so, 192/2400
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Probability Statistics

02/06/22

probability and statistics
1.     There are 3 arrangements of the word DAD, namely DAD, ADD, and DDA. How many arrangements are there of the word ENDURINGLY? 2.     There are 13 men and 12 women in a ballroom... more
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02/06/22

Equation help please
What is the equation here? 1 person is playing a game guessing a number and has odds of 1/256 so they get the right answer every 4minutes. What if 10 people are playing the same game independently?... more
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Probability

02/04/22

Probability question
There is a 12% probability of a flood in Selangor this year. If a major earthquake does occur, the probability of a flood re-occuring the following year drops to 8%.However, if there is no flood... more
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Probability

02/03/22

what is the probability that, in a random sample of 6 visitors to the website, exactly 2 arrive in error?
A certain company's IT department has found that 17% of all visitors to the company website arrive there in error. (They are actually looking for another website.) If this percentage is correct,... more
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Probability Statistics

02/03/22

An unfair die is tossed. Determine which of the following assignments could be made for the probabilities of each simple outcome. If an assignment cannot be made, tell why.
Question 1 part 1An unfair die is tossed. Determine which of the following assignments could be made for the probabilities of each simple outcome. If an assignment cannot be made, tell why.(a) 𝑃(1)... more
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Probability Statistics

02/02/22

The discrete random variable Z has the following discrete random variable distribution. What is E([Z-2]^2)?
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Probability Statistics

02/02/22

Struggling! Any help would be appriciated. In previous questions i was able to get all z scores but not the probability.

Serum cholesterol is an important risk factor for coronary disease. Suppose that serum cholesterol is approximately normally distributed with mean 217 mg/dL and standard deviation 46.47... more
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Probability Statistics

01/31/22

Find the smallest sigma-algebra for Ω = {−2, −1, 0, 1, 2}
Find the smallest sigma-algebra for which the function X(ω)=2|ω| is a random variable. Ω = {−2, −1, 0, 1, 2}Determine its distribution, probability function and E(X).
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Probability

01/31/22

Probability and standard deviation
You and a friend are working on shooting free throws at basketball practice. Your friend has a season average of making 80% of his shots.a. If the coach asks your friend to shoot 70 times, how many... more
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Probability Math

01/31/22

Probablity: A pinochle deck consists of 48 card, 2 of each of the 9 through the ace in 4 suits. If 2 cards are drawn at random, what is the probability that both will be black or both will be kings?
Schoolwork, I can't figure this out, but I'd like to know how I could solve it
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Probability

01/30/22

Geometric probability and statistics question
About 35% of Americans abstain from the consumption of alcohol if Americans are selected at random find the probability that the 10th person select it will be the first one who doesn’t drink alcohol
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Probability

01/29/22

why cant a negative number, eg -0.9 or-4/9 be a probability
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Probability

01/28/22

Can you prove this? Using Boolean algebra and rules of probability
P(A + B) = P(A) + P(B) − P(A B).
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Probability

01/25/22

What Is the probability that you draw a purple marble, put it back in dry yellow?
There 12 marbles in a bag, 5 yellow in 7 purple. What is the probability that you draw a purple marble, put it back in the in draw yellow? What What is the probability that you drive purple marble,... more
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Probability

01/22/22

probibilty with classes
Maya, a college freshman, is deciding on classes for her first term. She can choose to take some or all of the seven classes from the list below. She must take at least one of them. Astronomy,... more
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Probability

01/21/22

A test consists of ten true/false questions. A student who forgot to study guesses randomly. What is the probability that the student answers exactly five questions correctly?
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Probability

01/21/22

A class has six girls and five boys. If the teacher randomly picks six students. What is the probability that she will pick exactly 3 boys?
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