Expected values and Binomial distribution 5. Alex takes a multiple choice quiz in his Anthropology 100 class. The quiz has 10 questions, each has 4 possible answers, only one of which is correct. Alex did not study for the quiz, so he guesses independently on every question. What is the probability that Alex answers exactly 2 questions correctly? Express your answer in 5 decimal place value

Q: Math test has 6 multiple choice questions with four choices with one correct answer each. if you…

A: We have to find the probability that you get exactly 3 questions correct....

Q: Makayla is flying from Memphis to Oklahoma City with a connection in Denver. The probability her…

A:

Q: Find the Indicaled PA or b)= (Simplify your answer. Type an integer or a decimal.) If P(A and B) =…

A: Given P(A and B)=0.4, P(A)=0.6, and  P(B)=0.5, find P(A or B)

Q: A quick quiz consists of a multiple-choice question with 5 possible answers followed by a true/false…

A: Given dataMultiple choice questions with 5 possible answers followed by a true and false5 possible…

Q: 2. Rohan, the bookworm plans on reading 8 books by next week. But he only reads novels, poetry,…

A: *answer:

Q: Jeremy sells a magazine which is produced in order to raise money for homeless people. The…

A: Given:n = number of trials =20 (since Jeremy approaches 20 people)p = probability of success on each…

Q: You are to flip a fair coin, where probability of heads is equal to 50% (and tails is 50%). The fair…

A: Answer:- Given, The probability of head , P(H) = 50% = 0.50  The fair coin is flipped, n = 100000…

Q: Use the formula for the probability of the complement of an event.A pair of dice is rolled 3 times.…

A:

Q: Can you help me find how many winning ducks

A:

Q: A bag contains 5 red marbles, 3 blue marbles, 2 green marbles, 1 yellow marble and 1 purple marble.…

A:

Q: Suppose you have 10 tennis balls and you randomly pick some number of them. What is the probability…

A: Given the event that there are 10 tennis balls and one randomly pick some number of them.

Q: In a large population, 57% of the people have been vaccinated. If 3 people are randomly selected,…

A: Obtain the probability that that at least one of them has been vaccinated. The probability that that…

Q: The probability of events A and B is 0.24, and the probability of event A is 0.4. Find the…

A: Solution: From the given information, P (A and B) = 0.24 and P (A) = 0.4.

Q: Say you roll two dice. Find the probability c rolling a number greater than 2 on the first, and then…

A:

Q: A golf ball is selected at random from a golf bag. If the golf bag contains 5 yellow balls, 7 brown…

A: Given, Number of yellow balls=5 Number of brown balls=7 Number of black balls=5   Total balls=17

Q: Seventeen percent of married couples say they are planning a trip to Europe. You randomly select 15…

A: Suppose a random variable x, defines the number of married couples, who are planning a trip to…

Q: It is estimated that 63% of emails are non-spam emails. Some software has been applied to filter…

A: Solution  To find the probability we will use Bayes theorem.

Q: Manny buys a bag of cookies that contains 6 chocolate chip cookies, 4 peanut butter cookies, 7 sugar…

A: Bag contains no. of chocolate chip cookies=6no. of peanut butter cookies=4no. of sugar cookies=7no.…

Q: Mateo has a 9-question chemistry quiz and did not have time to study. If each question is…

A: Let x follows binomial distribution with parameters n = 9 and p = 1/5 = 0.2   The pdf of binomial…

Q: A quick quiz consists of a true/false question followed by a multiple-choice question with 6…

A:

Q: ou decide to learn a new hobby and take up archery. You can hit the target 34% of the time. If you…

A: Given Data: The probability of hitting a shot on the target is: p=0.34 The total number of shots…

Q: Find the indicated probability. Find the probability that the sum is no more than 7 when two fair…

A: When two dice are rolled then the possible out comes…

Q: Suppose that you have 13 coins: 6 dimes, 5 quarters, and 2 nickels. Two coins are selected at…

A: The probability is the equal chance of occurrence of an observation that can involve in the sample.…