information and find the probability that a woman who uses the test is pregnant and tests positive. Find also the probability of a false positive and, hence, comment on the reliability of the test.

Q: The probability that a person has a certain disease is 0.03. Medical diagnostic tests are available…

A: It is required to find the probability that the disease is actually present, if it is known that the…

Q: A jar contains 4 pennies, 6 nickels and 6 dimes. A child selects 2 coins at random without…

A: Given problem Given that   A jar contains  4 pennies 6 nickels 6 dimes A child selects 2 coins at…

Q: A student taking a true-false test consisting of 10 questions guesses at the answers. Assuming that…

A: Givensample size(n)=10In true or false the probability of making  correct guess isp=12=0.5 Let "x"…

Q: You are ordering a hamburger and can get up to 7 toppings, but each topping can only be used once.…

A: 4 toppings can be chosen from 7 by 7C4 Ways 7C4 =

Q: A survey found that 5% of people believe that they have seen a UFO. Choose a sample of 13 people at…

A: Let x be the number of people believe that they have seen a UFO which follows binomial distribution…

Q: A group of people were asked if statistics teachers know the true meaning of life. 338 responded…

A: Given data No of people who thinks, statistics teachers know the true meaning of life = 338 No of…

Q: In an experiment, positive and negative values are equally likely to occur. The probability of…

A:

Q: A coin is tossed and a die is rolled. Find the probability of getting a tail and a number greater…

A: A coin is tossed and a die is rolled. Chances of getting a tail or head are equally likely P(Tail) =…

Q: If the odds on a bet are 34:1 against, what is the probability of winning? Express your answer as a…

A: From the provided information,The odds on a bet are 34:1 against.

Q: The probability of A is 0.60, the probability of B is 0.40, and the probability of either is 0.76.…

A: Given: P(A)=0.6 P(B)=0.4 P(A or B)=0.76 The objective is to find the P(A and B)

Q: The probability that two independent students will not show up for class on a beautiful spring day…

A: The probability that two independent students will not show up for class on a beautiful spring day…

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

A:

Q: Explain how to find the probability of an event not occurring. Give an example.

A: We know that for any event, PEvent Occurring+PEvent Not Occurring=1 So PEvent Not Occurring=1-PEvent…

Q: A bottled water company runs a promotion in which 1 out of every 4 bottles has the word "Winner"…

A: It is given that the random variable represents the number of winners. The probability distribution…

Q: you run a small airline that operates ten 30 seat airplane flights per dat. for each flight, you can…

A:

Q: You forget to study for an exam and need to guess on all of the questions. The exam is three…

A: 3 questions ∴ n = 55 - choices of options∴ p(correct choice) = 15

Q: A jar contains 4 pennies, 6 nickels and 6 dimes. A child selects 2 coins at random without…

A: There are totally 14 coins in a jar in which 4 are pennies, 6 are nickels, and 6 dimes. The child…

Q: that the disease is actually present? The probability is (Round to three decimal places as needed.)

A: It is given thatP( disease) = P(d) = 0.04P(+ve/d) = 0.90P(+ve/d') = 0.02

Q: Find the probability of obtaining exactly one heart in four drawing from a deck of 52 cards.

A: Let p be the probability of getting heart. Then p = 13/52 = 0.25 Let X denote the number of hearts…

Q: a coin and a dice roll together six consecutive times. What is the probability of encountering for…

A: Given: Number of rolls = 6 Number of faces in a dice = 6 The sample space in one roll = (H1, H2, H3,…

Q: Two darts players throw alternately at a board and the first to score a bull wins. On each of their…

A:

Q: Refer to the table which summarizes the results of testing for a certain disease. A test subject is…

A: From given :   Positive test Negative test Total Has disease 144 17 161 Does not have disease…

Q: Estimate the probability of the event. Of 1936 people who came into a blood bank to give blood,…

A:

Q: The probability that a college student owns a computer is 0.65 and the probability that the student…

A: Probability of an event gives the chance of occurrence of that event and its value equals to the…

Q: Four identical chocolate bars, three identical bags of chips, and 6 identical popsicles are lined up…

A: There are 4 identical chocolate bars, 3 identical bags of chips, 6 identical popsicles. These are…

Q: couple has eight children. Suppose that the probability of having a girl is 0.5. What is the…

A:

Q: Find the probability X = 2 cents.    Find the probability X = 6 cents.    Find the probability X =…

A:

Q: An airplane has 100 seats for passengers. Assume that the probability that a person holding a ticket…

A: Let X be the number of persons holding a ticket appears for the flight.From the given…

Q: At a High school, 70% of the seniors have taken an advance calculus course. Of those who have taken…

A:

Q: A screening test for a disease shows a positive result in 94% of all cases when the disease is…

A: Let A and B be two events with P(A) > 0. Then the conditional probability of B given A, denoted…

Q: Roll 12 dice simultaneously, and let X denote the number of 6's that appear. Find the probability of…

A: Let X be a random variable denotes the number of 6's. Here, X~Bin12,16. Calculate the probability of…

Q: A class has 8 boys and 15 girls. If three students are selected at a random from the class, what is…

A: According to the combination rule, if r distinct items are to be chosen from n items without…

Q: A group of people were asked if statistics teachers know the true meaning of life. 201 responded…

A:

Q: Give the probability in decimal form (correct to two decimal places). A calculator may be helpful…

A: Given, Total number of calculators produced is 83000 Number of calculators returned to the…