A couple decides they will continue to have children until they have two males. What is the probability that their second male is their fourth child?

Q: If a pregnant woman is told that she will give birth to fraternal twins, what is the probability…

A: In this case, each baby has the only options of being "a girl" (defined as success) or "a boy"…

Q: In a family with 7​children, excluding multiple​ births, what is the probability of having7 ​girls?…

A: total no.of possible outcomes of a family having a 7 children iss=27s=128

Q: Four persons are sitting at a rectangular table. What is the probability that the two older people…

A: From the given information we find the probability.

Q: An office receives 20 faxed orders every two hours. What is the probability that it will receive 8…

A: Given: Number of order every two hours = 20 So, number of orders every hour = 202=10 Let X be the…

Q: While sitting on a park bench, Tanisha counts that 16 out of 20 people who walk by her have a pet…

A: The objective of this question is to find the probability of two mutually exclusive events: a person…

Q: when a coin is tossed

A: A coin is tossed 2 times.

Q: What is the probability that team b wins the series ?

A: Given Data: P( A wins)=0.4 P( B wins)=0.6   Team A wins the first game

Q: There are 40 students in a class and 4 midterms. What is the probability that someone has a midterm…

A: Given data: The total numbers of students are n=40. The numbers of midterms are m=4.   The…

Q: What is the probability that at least four of the next 5 cars get a green light

A: It is given that  Green light = 40 seconds Red light = 15 seconds Yellow light = 5 seconds

Q: In a large city there are an average of 02 fires per year. What is the probability that next year…

A: Solution: Let X be the number of fires per year. From the given information, average number of fires…

Q: A couple decides they will continue to have children until they have two males. What is the…

A:

Q: You roll a SIX sided die. What is the probability that the value of the roll will be even?

A: If we roll a 6 sided dice, the possible outcomes are 1,2,3,4,5 and 6 And each outcome is equally…

Q: A couple has two children. What is the probability that both are girls if the older of two is a…

A: The couple has two children.

Q: Five years after 650 high school seniors graduates, 400 had a college degree and 310 were married.…

A: Given: n(total) = 650 n(College) = 400 n(married) = 310 Half of college students are married.

Q: Two dice are rolled simultaneously. What is the probability that the two scores are different?

A:

Q: Each of the two friends tosses an unbiased coin ten times. What 1s the probability that each one…

A: Given Each of the friends tosses an unbiased coin ten times. Let X be the number of getting heads,…

Q: A jar contains 20 berries, 14 sweet and 6 sour. If you pick a berry at random, what is the…

A: Given that, A jar contains 20 berries 14 sweet and 6 sour.

Q: If you roll a die twice, what is the probability that you get two sixes in a row?

A: Obtain the probability that you get two sixes in a row. The probability that you get two sixes in a…

Q: Three rock bands and three rap groups are performing a show. What is the probability that a rock…

A: The question is about probability.Given :No. of rock bands = 3No. of rap groups = 3

Q: Mrs. Cruz has three daughters-in-law who are about to give birth. All of them have no idea as to the…

A: Given data: Mrs. Cruz has three daughters-in-law who are about to give birth. All of them have no…

Q: Suppose that 85% of people are voting in the election. If you pick two people at random, what is the…

A: Obtain the probability that they both are voting in the election.   The probability that they both…

Q: A group consists of 10 girls and 8 boys. They are to sit sit side by side on a bench. What is the…

A: Given that there are 10 girls and 8 boys. So total (10+8)=18 girls and boys. So 18 persons can be…

Q: If two coins are tossed, what is the probability of getting both heads

A:

Q: If they have one child, what is the probability that it is a boy?

A: If they have one child, then there will be two outcomes Girl, Boy Number of elements in sample space…

Q: hat is the probability that their third daughter is their sixth child?

A: here given , a couple decides to have children until they have three daughters  Probability of male…

Q: YYou go to a party which has1000 guests (including you). What is the probability that exactly one…

A: There are total 1000 guests.  My birthday is known to me. So there is only 1 way for my birthday.…

Q: You roll a TWELVE sided die. What is the probability that the value of the roll will be two?

A: When a 12 sided die is rolled then there are 12 possible outcomes. [any number from 1-12] If the…

Q: A disease affects 1 out of every 500 people. If you have the disease, you test positive 90% of the…

A: P( a person affected by the disease) = P(D) = 0.002 P( a person not affected by the disease) = P(ND)…

Q: Five grade 10 students, six grade 11 students and four grade 12 have signed up for a trip. Only four…

A:

Q: If the probability of being hospitalized during a year is 0.25. Find the probability that no one is…

A: X has binomial distribution. X~binomial(n,p)n=3p=0.25probability mass function of X;…

Q: You toss twice coins. What is the probability that both land Tails up?

A: Given, Possible outomes => [h,h] [h,h] [t,t] [t,h]Favourable outcomes =[t,t] = 1number of…

Q: You are to draw two cards without replacing the first one. What is the probability of having a king…

A: Multiplication Rule for two Independent events:If the events A and B are said to be independent…

Q: Suppose you flip a fair coin twice. What is the probability that the outcome is the same both times?…

A: When we flip a coin toss twice then total number of possible outcomes are S = {HH, HT, TH, TT }

Q: A couple has 2 children. What is the probability that both are girls if the older of the two is a…

A:

Q: In average the number of people entering the intensive care unit at the particular hospital on any…

A: Step 1: Identify the formula to be usedWe will use Poisson distribution in this case since there is…

Q: don't

A: Since the total number of people are 12  The number of ways they can sit together is  12! =…