A doctor has decided to prescribe two new drugs to 200 heart patients as follows: 50 get drug A, 50 get drug B and 100 get both. The 200 patients were chosen so that each had an 80 % chance of having a heart attack if given neither drug. Drug A reduces the probability of a heart attack by 35%, drug B reduces the probability by 20 % and the two drugs together work independently. If a random selected patient in the program has a heart attack what is the probability that the patient was given both the drugs?

Q: A car rental company randomly assigns one of its 6060 cars to a customer. 3.Of the 6060 cars, 44 of…

A: Probability of a customer assigned a red car = ( Favourable outcome )/(Total outcome ) i.e.

Q: In a sample of 1000 U.S. adults, 106 think that most celebrities are great role models. Two U.S.…

A: We can select the first adult in 1000 ways. When the first person is selected then the second person…

Q: a new surgical procedure in preliminary trials has a probability of success of 80%. if 10 patients…

A: Let X denote the patients are scheduled to go through this procedure and it follows binomial…

Q: A monk crossbred plants, which can have purple or white flowers, and obtained 600 plants with white…

A: The number of white flower plant are 600. The number of purple flower plant are 250.

Q: There are 5000 people in a village. 2000 were diagnosed sick. I am wrong 20% of the time. If you are…

A:

Q: If 14% of active duty soldiers in the U.S. Army are women, find the probability that if four…

A: Let X represent the random variable   n=4 p=0.14   X~ Binomial (4, 0.14)

Q: A college has a population that is 39.6% female and 60.4% male.  If 5 students are picked at random…

A:

Q: In a particular area 40% of men and 15% of women are overweight and there are four men and three…

A:

Q: In a family with 7 ​children, excluding multiple​ births, what is the probability of having 4…

A: The objective of this question is to find the probability of a family with 7 children having 4 boys…

Q: placekicker in pro football has a 77% probability of making a field goal over forty yards on each…

A: Given: Each attempt that is made to field goal is independent. The team will win if a goal is made…

Q: A company manufactures calculators in batches of 64 and there is a 4% rate of defects. Find the…

A: Givensample size(n)=64p=0.04Let "x" be the no.of defects in a batchx~Binomial(n=64 ,…

Q: operations in Arstotzka (QA) and Stardew (Qs). The proportion of biomes sent to Artotzka is 0.32,…

A: *answer:

Q: You have a box of chocolates that contains 53 pieces of which 33 are solid chocolate, 16 are filled…

A: Here, we have 33 solid chocolate piece,16 filled with cashews and 4 filled with cherries. We have a…

Q: Find the probability that a randomly selected voter voted for Bob Jones.

A: For a recent local election, 55% of the voters were Democrats. Of the Democrats, 80% voted for John…

Q: At a local high​ school, 15​% of the students have blue eyes. Each​ day, 9​% of the​ blue-eyed…

A: Let event B denotes that the students have blue eyes and S denotes student wear sun glass Given…

Q: Some of the managers at a company have an MBA degree. Of managers at the level of director or​…

A: Let A denote the persons having MBA and B denote the managers having a position at the level of…

Q: Please show your solution. A petroleum company exploring for oil has decided to drill 2 wells, one…

A: Given that  P(first attempt) = 0.25 P(Second attempt | First attempt) = 0.85

Q: Kiara sets up a passcode on her smart phone, which allows for 7 digits. She was informed that using…

A: Given: A smartphone allows 7 digits password she is a digit twice makes the phone more secure.

Q: An ice chest contains six cans of apple juice, eight cans of grape juice, four cans of orange juice,…

A: The objective of this question is to find the probability of a specific sequence of events…

Q: A person died prematurely, find the probability with which he could have been a heavy smoker given…

A: Step 1:First, we define the events:D: The person died prematurelyH: The person is a heavy smokerL:…

Q: In a classroom of 27 students, there are 17 girls and 10 males. Mr. Stover wants to randomly select…

A:

Q: what is the probability that Joe will like all the boss’s choices

A: When ordering his new office equipment, Joe must choose one of 8 monitors, one of 9 printers, and…

Q: The Dallas Mavericks play the Oklahoma City Thunder in a best of 7 game NBA playoff series. If the…

A: The given scenario follows binomial distribution with n=7 and p=0.40.

Q: A common lab test during a medical exam is a blood count. The two main aspects are counting the…

A:

Q: Angelina buys a bag of cookies that contains 8 chocolate chip cookies, 7 peanut butter cookies, 4…

A:

Q: If 4% of the passengers traveling to San Francisco have their luggage lost, what is the probability…

A: given data  P(luggage lost) = p = 0.04 n = 150 peoples x = no. of people lost their luggage  P(x≥5)…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.