(b) Find the probability that the student is in ourth grade. The probability that the student is in fourth grade is

Q: The probability that a car owner has a convertible is 0.3, a sedan is 0.2, and both a convertible…

A: Given data, P(Convertible)=0.3 P(Sedan)=0.2 P( convertible and a sedan)=0.1 P( convertible or a…

Q: A group of people were asked if life exists elsewhere in the galaxy. 140 responded "yes", and 324…

A: It is given that, 140 responded "yes" and 324 responded "no" about life exists elsewhere in the…

Q: Assume that the probability of a boy being born is the same as the probability of a girl being born.…

A: given data  P(boy)=P(girl) = 0.5 n = 5 childrens  P( atleast one boy) = ?

Q: A pair of dice is tossed. Find the probability that the sum on the 2 dice is 4, given that doubles…

A:

Q: A pair of dice are tossed twice. Find the probability that the first roll is a total of at least 12…

A: roll pair of dice twice.  roll dice : {1,2,3,4,5,6} for rolling pair of dice : total outcomes = 36

Q: Suppose that the probability that Bob has a flat tire is   56%.  Also, suppose that the probability…

A:

Q: The probability that team A loses against team B is 0.6 and the probability that team C wins against…

A: Let μi denotes the performance score for the team i. Thus, the performance score for teams A, B, and…

Q: If the probability that a vaccine you took will protect you from getting the flu is 0.972, what is…

A: It is given that the probability that a vaccine will protect a person from getting the flu is 0.972.

Q: The probability that a one, two, or six will appear face up on the throw of one die is

A: Suppose one die is rolled. Then its sample space is written as, S=1, 2, 3, 4, 5, 6

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: 100 people each have a probability of 0.01 of contracting a disease. What is the probability that…

A: Let the random variable X denote the no. of people contracting a disease and it follows binomial…

Q: Arthur is an oncologist with 11 patients in their care. The probability that a patient will survive…

A:

Q: If the probability that a vaccine you took will protect you from getting the flu is 0.932, what is…

A:

Q: Two dice are rolled. Find the probability that first die lands on an even number and the second die…

A: The sample space of all the 36 possible outcomes for the two dice is shown below:

Q: find the probability that the educator is a female or an associate professor

A: We have given that an educators at a college were classified according to gender and academic rank.

Q: A pair of dice are tossed twice.Find the probability that the first roll is a total of at least 11…

A: The objective of this question is to find the probability of two independent events happening. The…

Q: The chance of rain is 20%, the chance of it being sunny is 60%, and the chance of it being sunny and…

A: Let us denote  R=rain S=sunny Given that P(R)=20%=0.20, P(S)=60%=0.60, P(R and S)=10%=0.10

Q: If you are dealt 3 cards from a shuffled deck of 52​ cards, find the probability that all 3 cards…

A: Total number of queen cards is 13 and the total number of cards is 52.

Q: A newspaper report states that the probability of snow is .3. After calling the airport you are told…

A: As given, the probability of snow is 0.3, That is, P(snow) = 0.3 Therefore , P( not snow) = 1- P(…

Q: After seven days, what is the probability that Jorge has won at least one prize

A: Let p be ghe probability of winning a prize. Given that p = 0.4 Let X denote the number of prizes…

Q: A pair of dice are tossed twice. Find the probability that both rolls give at most a sum of 6.

A: We have given that,  A pair of dice are tossed twice then the sample space (S) is,  S = {(1,1),…

Q: An unprepared student makes random guesses for the 16 true-false questions on a quiz. Find the…

A: The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of…

Q: Suppose that the probability that Bob has a flat tire is  20 %.  Also, suppose that the probability…

A: Let define the events as follows: A = Bob has a flat tire B = Bob will have a transmission failure A…

Q: You roll a die five times. What is the probability that you will see a string of three or more…

A: Given data: *The die is rolled 5 times, n=5. The probability of getting one (success) when a one die…

Q: The probability of a particular soccer team winning a game is 0.30.  The probability of the team…

A: From the provided information, The probability of a particular soccer team winning a game = 0.30…

Q: An insurance company offers a $50,000 life insurance policy to people age 30 for $200. The offer the…

A: The question is about is expected value Given : Amount of insurance policy = $50,000 Amount to pay…