40 Answered Questions for the topic Probability Distribution

Probability Distribution

06/01/20

#### Please help out

A financial analyst has found out that,policy holders are four times as likely to file two claims as to file four claims.If the number of claims filed has a Poisson distribution,what is the...
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Probability Distribution

06/01/20

#### Please help out

A random variable X has poisson distribution with mean equal to 0.4.what is the probability that the random variable is greater than Zero?

Probability Distribution

06/01/20

#### Please can get aid on this

A discrete random variable has probability mass function,P(X=n)= (1/2)nlet Y= {1, For x is even -1, For x is odd}find the expected value of Y; (E[y])

Probability Distribution

07/24/19

#### A group of people were asked if they owned a dog. 205 responded "yes", and 273 responded "no". Find the probability that if a person is chosen at random, they own a dog.

Probability Distribution Probability

07/22/19

#### A salesperson estimates that 30% of people make a purchase. Determine the probability distribution for the possible number of sales made for the first five people who enter the store.

Probability Distribution Probability

07/21/19

#### A trivia test has 10 multiple-choice questions, each with four possible answers. What is the probability of randomly guessing the correct answers for 9 or 10 of the questions.

Probability Distribution Probability

07/21/19

#### The odds in favour of Jack being on time for this Data Management class are 1:8. What is the probability that Jack will be on time for the next three classes?

Probability Distribution Probability

07/21/19

#### From 5 cats and 7 dogs in a pet shop, 4 pets are chosen at random for a visit to a children’s hospital. What is the expected number of cats chosen?

Probability Distribution Probability

07/21/19

#### A bank found 25% of its loans If 20 small businesses are randomly selected from the bank’s files, what is the probability that three of them are delinquent?

Probability Distribution

06/11/19

#### Find the probability

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 97 people in the 18-21 age bracket and finds that 82 of them respond and 15...
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Probability Distribution

10/03/18

#### If the probability distribution for the random variable X is given in the table, what is the expected value of X?

If the probability distribution for the random variable X is given in the table, what is the expected value of X?
Xi -3, 1, 4
Pi .4, .5, .1
E(X)=

09/21/18

#### I need help with 1) Y~B(10, 0.5) Compute P(1<Y<4)= 2) Mean of 𝑥 =10, Variance of 𝑥 =16 and 𝑥 has a Normal Distribution Pr(5< 𝑥 <17)=?

i need a help with my question for homework . i need help because the professor went a quit fast in the online class. he doesn't provide good example. If anyone wanna explain it to me to how to do...
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08/02/18

#### Please Help me to answer this question. Justify your answer please

A student council has five seniors, four juniors, three sophomores, and two freshmen as members. In how many ways can a four member council committee be formed that includes one member of each class?

08/01/18

#### Please help me to answer these questions for cumulative distribution of the random variable X

The cumulative distribution of the random variable X is given by
G(x) = 0 for x<0 3x2-2x3 for 0≤x<1 1 for x ≥1 a)Find the...
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Probability Distribution

05/22/18

#### Discrete Random Variable

Could you please help me with the following question
Question: Is the following a Discrete Random Variable? If not, give a reason.
P(X=x) = x/6, where X = 0, 1, 2, 3
Thank you in advance

Probability Distribution Permutation And Combination

04/03/18

#### Find how many 4 digits numbers can be formed from the 6 digits, 2,3,5,7,8, and 9, without repeating any digit.

Also find how many of these numbers are; a) Less than 7,000 b) Odd

01/27/18

#### Easy question however, I somehow can't do it

a pupil travels to school either by MRT or by bus. Th probability that the pupil will be late for school is 1/12 if he travels by MRT and 1/9 if he travels by bus. a) if he travels by bus on two...
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Probability Distribution

02/16/17

#### what is the value of P(X=2 or X =0)

using probability distribution table.

12/15/16

#### Discrete probability distributions

If you select a red diamond picture card (i,e.) a card that doesn't have a number on it) you win $100. It costs $10 to play this game. What is your expected earnings? if you played this game 10,000...
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Probability Distribution

06/11/16

#### Probability distribution question

You play a game of rolling 2 dice. You lose the game if you roll an 11 before you roll a 7. You continue to roll until either an 11 or 7 appear. What is the probability that you will lose the game...
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Probability Distribution

05/07/16

#### Finding a distribution

Hey, I'm having trouble understanding the following question:Consider the random variable X that can take on the values1, 2, 3, 4, and 5. Assume that the numbers are equallylikely. Hence the...
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Probability Distribution Probability Stats

04/30/16

#### Probability Distribution

The probability distribution for a random variable x is given in the table. find the probability that x≥ 5.
x -10,-5, 0, 5, 10, 15, 20
Probability .20, .15, .05, .1, .25, .1, .15

Probability Distribution

04/30/16

#### Multivariate normal distribution

1. Suppose that (i) ε ∼ N(0,σ2); (ii) X∼N(μ,τ2); (iii) ε⊥X; (iv) Y =α+βX+ε. (a) Find the conditional distribution of Y given X = x. This is the answer: (a) Y|X=x∼N(α+βx,σ2)But I have no idea how to...
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Probability Distribution

04/05/16

#### If 55% of companies in victoria island own an answering machine, what is the probability that 3 of the next 4 randomly selected companies in victoria island wil

If 55% of companies in victoria island own an answering machine, what is the probability that 3 of the next 4 randomly selected companies in victoria island will own an answering machine?

Probability Distribution

04/05/16

#### A red die and a green die are rolled once. Find the conditional probability that the number on red die is odd, given that the sum of the two numbers showing is

A red die and a green die are rolled once. Find the conditional probability that the number on red die is odd, given that the sum of the two numbers showing is 9

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