You take an exam that contains 20 multiple-choice questions. Each question has 4 possible options. You know the answer to 10 questions, but you have no idea about the other 10 questions so you choose answers randomly. Your score X on the exam is the total number of correct answers. Find the PMF of X. What is P(X > 15)?

Q: Find domain aud Range F(x ng) = I-オーチ %3D

A: For the solution of the problem follow the next step.

Q: Given P(A and B) = 0.02, P(A) = 0.82, what is P(B|A)? Answer in decimal form. Round to 3 decimal…

A: The conditional probability of B given A, denoted P(B|A), is

Q: 2. In a recent taste testing survey, it was found that 5/7 of all people surveyed preferred the…

A: We can solve the given problem by using the substitution method.

Q: The coefficient of determination is % of the variation of y is (Choose one) v to the variation of x.…

A: The correlation coefficient is given by r = 0.99

Q: Emily has taken 4 tests so for in her English class. Her scores so for are 84, 73, 91 and 65. She…

A:

Q: Fiona baked some cookies. 4/5 of the cookies baked were chocolate cookies and the rest were coconut…

A: Fiona baked some cookies. 45 of the cookies baked were chocolate cookies and the rest were coconut…

Q: Sam had 2 fewer pets than 1/3 of the pets Denny had. How many pets does sam have

A:

Q: You visit an animal shelter for 1(3)/(4) hours. You spend an equal amount of time with each of 7…

A: You visit an animal shelter for 1(3) / (4) hours. You spend an equal amount of time with each of 7…

Q: x +1

A: We have to find the restricted value

Q: Free Throw Shot - A player is awarded free throws whenever the player is fouled in a shooting…

A: here given, piel make 60% of his  free throw. Everyday piel make 5 free shot. x=number of free throw…

Q: In a video game you can earn point for passing a level and also a bonus, which is a percentage of…

A: Tokens earned in each level = t  points earned for each level = 3000 + .25t

Q: If P(A) = 0.5 and P(B) = 0.80, then P(A or B) must be 0.95.   TRUE or FALSE

A: From the provided information, P (A) = 0.5 and P (B) = 0.80

Q: 8

A:

Q: You go to the deli to purchase some turkey. You can buy 8 ounces of turkey for $3.99, or by 18…

A: Given ,  You go to the deli to purchase some turkey. You can buy 8 ounces of turkey for $3.99, or by…

Q: Shouldn't it be n=39?

A: here College students were divided at random into three groups of 39 each

Q: the product of -3.5 and a number, n is greater than 17.5. what are the possible values of n?

A: We have to solve

Q: The diagram represents the floor tiles in Michelle's house. If mZ 2 = 125, find mZ 4. 4 1/2

A: The above diagram shows they are transversal lines . By the property Alternate interior angles are…

Q: Mark had x number of beads. John had 5 beads more than Mark. John had 4 beads more than San. What…

A:

Q: 39. What is the value of (EX)² for the scores: -1, 0, 3, 5?

A: Given that  The data are -1,0,3,5 Find the value (∑X)2

Q: shots 3 free throws every day in practice. Suppose the random variable, X, is the number of times…

A: Given that  Probability of his free throws = 60% = 0.60 Number of his free throws = 5

Q: If P(A) 0.3 , P(B) = 0.8 and P(A or B) = 0.9 Find P(A and B).

A:

Q: If P(An B) = 0.2 and P(B) = 0.8, what is P(A | B)?

A:

Q: Alfred buys an old scooter for Rs.4700 and spends Rs.800 on its repairs. If he sells the scooter for…

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Q: P=6 and q=7 what is the value of 2pq

A: answer is in next step

Q: What is needed to find a p value?

A: In hypothesis test we define the null hypothesis which is tested for possible rejection under the…