QUESTION: An examination consists of multiple-choice questions, each having five possible answers. Suppose you are a student taking the exam. and that you reckon you have probability 0.75 of knowing the answer to any question that may be asked and that, if you do not know, you intend to guess an answer with probability 1/5 of being correct. What is the probability you will give the correct answer to a question?

Q: You order sixteen burritos to go from a Mexican restaurant, nine with hot peppers and seven without.…

A: Given that you order 16 burritos to go from a Mexican restaurant, 9 with hot peppers and 7 without.…

Q: If 64% of the people at a certain conference are doctors, 31% are women, and 29% are female doctors,…

A: Solution

Q: second card. If the card is a red card, the player sets it aside and then draws the second card. If…

A:

Q: A game of chance costs $5 to play. The game requires the player to roll a fair six-sided die until…

A: Given: Number of faces = 6 A die is rolled until 1 appears.

Q: order sixteen burritos to go from a Mexican restaurant, six with hot peppers and ten without.…

A: Given that  Total burritos = 16 Hot peppers = 6 Not hot peppers = 10 3 burritos are selected at…

Q: Use the following information to answer the following question. A bag contains 12 red marbles, 15…

A: Given info: A bag contains 12 red marbles, 15 yellow marbles, 10 green marbles, and 3 black marbles.…

Q: The solution was incorrect.  At a community center, 200200 members are asked if they own a bike and…

A: Here the given table is

Q: A new drug cures 65% of the people who have a certain disease.  Suppose 40 people who have the…

A: Given: Number of people who have disease is 40, that is, n = 40. Probability that a new drug cures…

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing…

A: There are total (3+5+2+3)=13 marbles. She can grab 7 marbles in 13C7=1716 ways.   We first find the…

Q: A family has two children. Now, I tell you one of the children is a girl. What is the probability…

A: here probability of girl = 12   probability of boy = 12 here each birth independent from each other…

Q: The HOD asked the professor to show him 4 answer books without "A", The professor complained that he…

A: The probability of the event is,   probability=Number of ways to event occurTotal number of possible…

Q: Two dice are thrown. Find the probability that the sum of the numbers coming up on them is 9, if it…

A:

Q: Suppose that 85% of all defendants are indeed guilty. In a criminal trial by jury, the probability…

A: Let A1, A2, ... , An be n mutually exclusive and exhaustive events with P(Ai) > 0 for all i = 1,…

Q: You order fifteen burritos to go from a Mexican restaurant, five with hot peppers and ten without.…

A: Given,no.of hot pepper burritos=5no.of burritos without hot peppers=10total no.of burritos=15

Q: A room contains 25 people who would respond differently to a yes/no question, if asked. Room: • 25…

A: There was a total of 25 peopleA sample of 9 people was drawn without replacement.It is needed to…

Q: A problem in statistics is given to five students A, B, C, D and E. Their chances of solving it are…

A: Here, P(A) =1/2 , P(B) =1/3, P(C) =1/4,P(D) =1/5 and P(E ) =1/6.

Q: Kelly is a "moonshot" person. He tried to take the 100-item multiple choice exam without studying at…

A: Solution

Q: You are given an unbalanced coin with 40% chance for heads. If you tossed this coin 10 times, find…

A: We have to find correct answer..

Q: (ou order seventeen burritos to go from a Mexican restaurant, eight with hot peppers and nine…

A: Given that, Number of burritos = 17 Number of burritos with hot peppers = 9 Number of burritos…

Q: A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer.…

A: Given : A student takes a ten-question true-false quiz  Probability of success,p = 0.5…

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing…

A: Given that the bag has 3 red marbles, 2 green ones, 5 white ones, and 2 purple ones. So there are…

Q: Suppose you are throwing a pair of fair dice. Each die has 6 sides numbered 1 through 6. If you…

A: The study is about throwing a pair of fair dice. The multiple of the value of each die after…

Q: Use Scenario 5-13. If a single student is selected at random and you know she has a dog, what is the…

A:

Q: the probability that a bird will lay an egg is 75%, the probability that the egg will hatch is 50%,…

A: Given that  The probability that bird will lay an egg = 75% ;  P(Egg) =  0.75 The probability that…

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing…

A: There are 4+3+4+1 =12 marbles in the bag. 7 marbles are drawn at random. Define the random variable,…

Q: Suppose that 24% of people own dogs. If you pick two people at random, what is the probability that…

A: Given 24% of people own dogs

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing…

A:

Q: Michael gave a probability answer as 24. What is wrong with an answer such as this?

A: According to the provided information, Michael gave a probability answer as 24.

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing…

A: Lets, specify the event E as, Suzan has no more than one white marble among the 5 marbles. The…

Q: You order fifteen burritos to go from a Mexican restaurant, five with hot peppers and ten without.…

A:

Q: In answering a question on a multiple-choice test, a student either knows the answer or guesses. Let…

A: Given Data: P( Student knows and Correct Answer)=3/4 P( Correct Answer)=34+14×14=1316

Q: Suppose that 1% of the population has a certain disease. The test to diagnose the disease is 99%…

A:

Q: You order seventeen burritos to go from a Mexican restaurant, nine with hot peppers and eight…

A: Permutation and combination used to calculate the number of possible ways to arrange or select a…

Q: You hold a Poker hand with two Sevens, two Kings, and an Ace.  If you trade the Ace for a new card…

A: Given Data: n( sevens)=2 n( kings)=2