8.15. A box contains 5 red and 5 blue marbles. Two marbles are withdrawn ran- domly. If they are the same color, then you win $1.10; if they are different colors, then you win -$1.00 (that is, you lose $1.00). Calculate (a) the expected value of the amount you win; (b) the variance of the amount you win.

Q: You are running an Analysis of Variance to test if there is a difference in the average lengths of…

A: The problem relating to one way classification of ANOVA.

Q: Decide whether or not the two events in question are independent or whether it is not possible to…

A: Independent events: If A and B are independent, then P(A and B)=P(A)×P(B)

Q: Use the equations above to find the missing probability. 13. Event A and Event B are independent a)…

A: 13 a) Given data,P(B)=12P(A and B)=740P(A)=? P(A and B)=P(A)*P(B) 740=P(A)*12P(A)=1440P(A)=720

Q: A grocery store manager wants to know if displaying cranberries near the entrance to the store…

A: P1 : Proportion of shoppers who buy Cranberries when they are near the store entrance. P2 :…

Q: 3. Find the binomial probabilities b(5; 7,.3) and b(2; 11,.13).

A:

Q: 3. Rish Florist determines the probabilities for the number of flower arrangements they deliver each…

A: Let X be the random variable having probability distribution is,  X 6 7 8 9 10 P(x)  0.2 0.2…

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A: 1. number of trials 2. successful trial

Q: 2. Consider an experiment of rolling five dice. (a) [1 (b) What is the probability that the five…

A:

Q: Customers at a gas station pay with a credit card (A), debit card (B), or cash (C). Assume that…

A: The question is about discrete prob. distribution Given : Event A : Customer pays at a gas station…

Q: If two events A and B are independent and you know that P(A) = 0.60, what is the value of P(A | B)?

A: Solution: From the given information, A and B are two independent events and P (A) =0.60.

Q: How do you show that two events are independent?

A: Two events A and B are said to be independent if P(A and B)= P(A)*P(B)

Q: For two events, A and B, P(A) = 0.5, P(B) = 0.5, and P(A/B) = 0.4. a. Find P(ANB). b. Find P(BIA).…

A:

Q: Which pairs of events are independent? P(A)=0.55, P(B)=0.65 p(A&B)=0.35?

A: Two events are said to be independent if PA and B=PA·PB.

Q: You buy 12 lottery tickets. Assume each ticket is independent of all other tickets, and each ticket…

A: n=12=sample size variance=2.52

Q: A random variable X represents the number of defective mobile phone is a shipment of four iPhones to…

A: The probability that the iphone is defective  will be 0.5 as it is equally likely that the iphone is…

Q: ou write a code over and over, and each time there is probability p that it gets accepted,…

A:

Q: Use this information to answer #19 - #23: A sample of 10 Psychology students at UNCP students were…

A:

Q: c.) Assume that the utility of n dollars is . Write an expression for the expected utility of the…

A: Given: Lets consider the utility of n dollar is 10. Trials=100

Q: In a bolt factory machine A, B, C manufactures 20%, 30% and 50% of the total of their output and 6%,…

A: As per our guidelines we are suppose to answer only one question. Let d= defective…

Q: The number of computers sold per day at a local computer store, along with its corresponding…

A: Solution Let X: number of computers sold X P(X) X•P(X) X-u (X-u)2 (X-u)2•P(X) 0 0.1 0.0 -2. 2…

Q: enetics. The accompanying table describes results from groups of 8 births from 8 different sets of…

A: X                   P[x] 0                  0.0041                  0.0312                  0.1093…

Q: 28 percent of American males smoke cigarettes, percent smoke cigars, and 5 percent smoke both cigars…

A: Cigarette = A, Cigar = BP(A) = 28% = 0.28P(B) = 7% = 0.07P(A and B) = 5% = 0.05

Q: A lucky lovers discount is applied using the following: Outcome AV A•, then A♥ Black Ace X 40 30 20…

A: Given data

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A:

Q: If two events A and B are independent and you know that P(A) = 0.50, what is the value of P(A | B)?

A: As the events A and B are independent, the probability of occurrence of A is not impacted by the…

Q: The events A and B are mutually exclusive. If P(A) = .33 and P ( B) = .26, what is the P( A or B)

A: Given that  P(A) = .33 and P ( B) = .26

Q: The data given is the expected points for a football team with first down and 10 yards to go from…

A:

Q: The events A and B are mutually exclusive. If P(A) = .31 and P ( B) = .42, what is the P( A or B)

A: It is given that  P(A) = 0.31 P(B) = 0.42

Q: 9. The table below shows the proportional breakdown of the types of donuts purchased by a customer.…

A: It is given that the proportional breakdown of the types of donuts purchased by a customer. Here,…

Q: You and your 4 other friends play 5 ranked games in Mobile legends every day for the past few…

A:

Q: What are the expected value and variance of your profit

A: Neighborhood Insurance sells fire insurance policies to local homeowners. The premium is $150, the…

Q: Customers at a gas station pay with a credit card (A), debit card (B), or cash (C). Assume that…

A: We have given that Customers at a gas station pay with a creditcard (A), debit card (B), or cash…

Q: You roll five fair six-sided dice. Let X denote the sum of the numbers shown. Compute the…

A: If we roll a die then the probability of occurring of 1,2,3,4,5 and 6 is 1/6  p= 1/6 Given that 5…

Q: Find the expected value and variance of his gain. Interpret the result.

A: HERE GIVEN , A padjack driver tosses an unbiased coin  so here  probability of tossing head= 0.5…