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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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Probability

01/20/22

Selecting a Card If one card is drawn from an ordinary deck of cards, find the probability of getting A 7 or an 8 or a 9

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Probability

01/17/22

Probability when using a spinner twice

Derek and Clarissa are playing a game using a spinner with five evenly sized sections labeled 1 – 5. Each player spins the spinner twice and records the sum of the two numbers. Derek wins if the... more

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Probability Math Statistics Sat Math

01/14/22

How to determine the measures of position from this data below?

There are 40 students in a class and here are their... more

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Probability

01/14/22

Two number cubes labeled 1-6 are rolled.Which set represents the sample space for all the possible outcomes of the sum shown on both number cubes?

A) (1,2,3,4,5,6) ,(B) (1,2,3,4,5,6,7,8,9,10,11,12),(C) (2,3,4,5,6,7,8,9,10,11,12) ,(D) (2,3,4,5,6,7,8,9,10,11)

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Probability

01/14/22

Claire is ordering a milk shake.She has a choice of small,medium,or large,and vanilla or chocolate.Make a tree diagram to determine the number of choices of milk shakes claire can order

Let S=small,M=medium,L=large,V=vanilla,and C=chocolate

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Probability Statistics

01/13/22

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

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Probability Statistics

01/13/22

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

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Probability Statistics

01/13/22

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

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Probability

01/12/22

De Moivre–Laplace theorem By wiki

https://en.m.wikipedia.org/wiki/De_Moivre%E2%80%93Laplace_theorem. Above is the wiki link related to De Moivre–Laplace theorem. And given by the condition of proof 1,my question is why p(n,... more

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Probability

01/12/22

Jordan is buying two goldfish the aquarium has 6 solid orange fish and 8 spotted fish. What is the probability that Jordan selects two spotted fish

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Probability

01/10/22

specific probability

A certain internet cafe assigns a 4 character log in (At random) These Characters are composed of all the letters of the alphabet including upper case and lower case plus 0-9. So if i am counting... more

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Probability Microsoft Excel Statistics Data

01/08/22

statistics probbality data analysis

An airline is deciding how much to overbook a flight. The plane has 175 seats. Historically, 95 percent of those with a reservation will actually show up. The airline charges $500 for each seat on... more

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Probability Math Maths Combination

01/06/22

Password Combination

Here is the answer I want to ask... Please help to solve this question.The password of a system consists 3 capital letters selected from A-Z. Repetition use of any letters is allowed. Find the... more

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

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

Find the smallest sigma-algebra for Ω = {−2, −1, 0, 1, 2}

Probability and standard deviation

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?

Geometric probability and statistics question

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

Can you prove this? Using Boolean algebra and rules of probability

What Is the probability that you draw a purple marble, put it back in dry yellow?

probibilty with classes

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?

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?

Selecting a Card If one card is drawn from an ordinary deck of cards, find the probability of getting A 7 or an 8 or a 9

Probability when using a spinner twice

How to determine the measures of position from this data below?

Two number cubes labeled 1-6 are rolled.Which set represents the sample space for all the possible outcomes of the sum shown on both number cubes?

Claire is ordering a milk shake.She has a choice of small,medium,or large,and vanilla or chocolate.Make a tree diagram to determine the number of choices of milk shakes claire can order

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

De Moivre–Laplace theorem By wiki

Jordan is buying two goldfish the aquarium has 6 solid orange fish and 8 spotted fish. What is the probability that Jordan selects two spotted fish

specific probability

statistics probbality data analysis

Password Combination

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