1. Complete the table below by finding the variance and standard deviation of the following probability distribution. P(X) X P(X) (xla x 19 0.2 20 0.2 21 0.3 22 0.2 23 0.1

Q: Threw fair coins are tossed. Find the probability that they are all heads if the first coin is heads...

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Q: With six card, each card has 32 numbers on it. If Fraudini added two new cards (and updated the old ...

A: Given Six card with 32 numbers in them as shown below1)Here the trick is Fraudini ask to pick any nu...

Q: P(A)=0.55,P(B)=0.58,P(B∪A)=0.86 Find the following probabilities. P(A∩B) =  P(B|A) =  P(A|B) =

A: We have given that,  Let A and B are two events with P(A)=0.55, P(B)=0.58, P(B∪A) or P(AUB) =0.86  T...

Q: After rolling a fair twenty-sided die 200 times, the observed (or experimental) probability of rolli...

A: A 20-sided fair die is rolled.

Q: A package contains 100 LED light bulbs, of which 10 are defective. A sample of 5 bulbs is selected a...

A: Given,no.of defective bulbs=10no.of good bulbs=90Total no.of bulbs=100

Q: Use the Table of Standard Normal distribution to determine corresponding probabilities of the follow...

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A: Given that  Number of Seniors (N)=10  Number of jobs (k)=6  Sample selected for interview (n)=7 We h...

Q: Determine the probability density function for the cumulative distribution function shown below.

A: Given:  cdf of random variable x is   F(x) is given then find probability density function of x ??

Q: a. Create a probability model for the random variable X = cost of claims. b. What is the long-term a...

A: Note: Here AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION  An electronics retailer is developin...

Q: Sherane rolls a standard, six-sided number cube. Find P (not composite

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Q: Nine hundred and thirty-two businessmen accepted the Mayaman Challenge of one of the Philanthropic F...

A: GivenMean(μ)=135standard deviation(σ)=15No.of businessmen accepted challenge = 932

Q: A die is rolled 11 times. Find the probability of rolling the following. Exactly 11 twos. The probab...

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Q: To lessen the number of non-numerates in private High School, the Mathematics department implemented...

A: We have given that.   X~N( μ , ?^2 )   μ =30.50 , ? =9.50   Z-score =( x - μ )/?

Q: Let X be a random variable with the following probability distribution. Value x of X P (X=x) 1 0.05 ...

A: Solution-: We have following table: X P(X=x) 1 0.05 2 0.85 3 0.05 4 0.05 We find, (a)...

Q: A teacher informs his cell biology class (of 500+ students) that a test was very difficult, but the ...

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Q: The medication Nealapril is used to lower high blood pressure. It is known to cause headaches in 4.8...

A: We have given that,  Let X be the random variable from binomial distribution with probability (p)= 4...

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Q: Question: How many different groups of seven balls can be drawn from a barrel containing balls numbe...

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Q: 2. Meeker (1987) reports the results of a life test on n = 100 ball bearing tested for 100 million o...

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Q: (A psychologist is experimenting with white and black mice which have been divided into 2 groups. In...

A: Let us define some events A : a mouse came from group I. B : a mouse came from group II. E : a white...

Q: Suppose three cards are selected from a standard deck of 52 cards and laid out in a row on a table. ...

A: Dear student, If you find this solution helpful please upvote ? it.

Q: A binomial experiment with probability of success p=0.35 and n=4 trials is conducted. What is the pr...

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Q: Which brand should the store eliminate? A. Brand D B. Brand A C. Brand B D. Brand C

A: Given the table shows the number of items of each brand that were returned  over the past year and t...

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Q: CWD Business systems maintains a successful Telecom sales department for Top up call credit in which...

A: Given information: It is given that the phone calls come in a rate of about 15 per hour. The clerk i...

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A: Given that, Total number of cookies = 7+4+5+5 = 21 Number of chocolate chip cookies = 7 Number of pe...

Q: The table below shows the probability distribution of a random variable Y. Y P(Y) 11 0.7 12 0.1 13 0...

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Q: A psychologist is experimenting with white and black mice which have been divided into 2 groups. In ...

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Q: The table below shows the number of survey subjects who have received and not received a speeding ti...

A: General formula of probability ,   Probability = Number of favorable outcomes Total outcomes     

Q: A study reports that 68% of all people own dogs. Suppose that two people are chose at random from th...

A: Event is the outcome of the experiment. There are two types of events, they are independent and depe...

Q: A survey found that women's heights are normally distributed with mean 62.8 in. and standard deviati...

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Q: A bag contains 9 Cherry Starbursts and 21 other flavored Starburts. 12 Starbursts are chosen randoml...

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Q: Out of 800 families with four children each, what percentage would be expected to have no girls? ass...

A: Given that, Out of 800 families with four children each and  boys and girls are equally likely to ha...

Q: 3. Nine friends consisting of seven girls and two boys bought a ticket for a theater. In how many wa...

A: Given that, Nine friends consisting of 7 girls and 2 boys bought tickets for a theater. We need to f...

Q: An urn contains 3 green balls, 2 blue balls, and 4 red balls. in a random sample of 5 balls, find th...

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Q: Answer only 3 6 7. Thank you. Please do it with solution.

A: Given data represents the enrollment for the past ten years. Calculations: (3) To find the value of...

Q: Below is NOT a probability distribution. Choose TWO reasons why It is not considered as probability ...

A: Solution:  The conditions for the valid probability distribution are . 1) All the probabilities of t...

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Q: The probability that a randomly selected box of a certain type of cereal has a particular prize is 0...

A: @solution::: A) nb( x,3,0.1)   B) 0.0049   C) 0.00486   d)   27 30    

Q: Find the indicated probability. Refer to the table which summarizes the results of testing for a cer...

A: from the given table ( 1 ) P ( false negative ) =? ( 2 ) what probability suggest

Q: In how many ways can 12 jury members be seated in a court?  b) What is the probability that Ashley w...

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Q: Problem 5 Find the probabilities for each, using the standard normal distribution. Draw and shade th...

A: We have to find given probability using standard normal distribution table(ztable)

Q: (a) What is the probability that the psychic will get exactly two out of three tests right, if he is...

A: Here use binomial distribution because 

Q: 36) What is the probability of a dart landing in the shaded region? (Assume that the x's represent e...

A: Given the, square with some shaded region , we need to find the probability  of a dart landing in th...

Q: COMBINATION 1. How many ways committees of four members can be formed from 10 architects?

A: We have given that,  1. How many ways committees of four members can be formed from 10 architects?  ...

Q: Problem 8 The average number of liters of water consumed by a track and field team during a race is ...

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Q: Seventeen individuals are scheduled to take a driving test at a particular DMV office on a certain d...

A: We have to find the distribution of X  P(X=2), P(X<=2), P(X>=2)  And mean and standard deviati...

Q: At a fast-food restaurant, 60% of the patrons order a burger. Of those ordering a burger, 40% also o...

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Q: A pizza parlor offers a choice of 16 different toppings. How many 4-topping pizzas are possible? (no...

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Q: An officer of the state lottery commission has sampled lottery ticket purchasers over a 1-week perio...

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