There are 2 different fire alarm systems in the store. System A detects fire with a probability of 0.92 and costs 2 times expensive as system B. System B detects fire with a probability of 0.74. Which option is better: to set two systems B or one system A?
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A: Given: Sample size (n) = 39 Number of success (x) = 26 α= 0.05 Here, the test is to be conducted…
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A: Given that A bag of gumballs contains 10 green gumballs, 8 orange gumballs, 12 pink gumballs and 15…
Q: Express the probability that the next customer will pay with a credit card as a reduced fraction.
A: Total number of customers = (62 + 20 + 34) = 116 Number of customers used credit card = 34
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A: Let X denotes the number of gumballs that Erin will need to pull out of the bag until she gets her…
Q: If you are dealt 7 cards from a shuffled deck of 52 cards, find the probability of getting four…
A: From the provided information,We are dealt 7 cards from a shuffled deck of 52 cards.Total cards =…
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A: Let F denote the students that are freshmen and D denote the students that live in a dorm. We…
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A:
Q: A city council consists of seven Democrats and five Republicans. If a committee of six people is…
A: Here, seven Democrats and five Republicans. committee of six people is selected. The number of ways…
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A: Given : A mail company has a 9% success rate. n=500p=0.09 Consider x represents the variable…
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A: Given; P(win)=30%=0.30 Therefore, the probability that the Mets will not win is-
Q: A frequently travels to 3 places p, q and r .She never stays in one place more than one day…
A:
Q: A couple plans to have 4 children. List the different outcomes according to the gender of each…
A: The objective of the question is to list all the possible outcomes of having 4 children, considering…
Q: If the probability that the Yankees will win a baseball game is 60%, find the probability that the…
A: The probability that Yankees will win a baseball game is 60%, that is PWinning=0.60.
Q: Todd and Tiff both train pets. Todd trains 30% of pets and Tiff trains 70% of pets. Todd’s pets are…
A: Given that P(Todd trains)=0.30 P(Tiff trains)=0.70 P(female| Todd) =0.55 P(female| Tiff) =0.65
Q: Sam works as a forest ranger and spends many nights in the wilderness, often relying on…
A: Given that, Sam works as a forest ranger and spends many nights in the wilderness, often relying on…
Q: A doctor has 3 doses of flu protection vaccine left. He has 5 women and 9 men who want the…
A: GivenNo.of women = 5No.of men = 9Total no.of people = 14No.of doses doctor have=3
Q: The probability of selecting a four-person committee with one Democrat and three Republicans is .
A:
Q: A schoolteacher is concerned that her students watch more TV than the average American child. She…
A: Given data: Significance level= 0.01 Given claim: Test the hypothesis that her students watch more…
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A: Given: A total of 13 games are there. 10 will run on the operating system and 3 will not.
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A: From the provided information, The chance that the fire car can be used when needed = 98% Let A be…
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A:
Q: find the probability of being dealt a hand of four cards from a standard deck that contains all four…
A: find the probability of being dealt a hand of four cards from a standard deck that contains all…
Q: A jar contains 3 red, 2 white, and 5 blue marbles. What is the probability of selecting two marbles…
A:
Q: A laundry bag contains 8 brown socks and 3 black socks. Find the probability of picking two black…
A: Given Data: n( brown socks)=8 n( black socks)=3 Total number of socks=8+3=11
Q: A machine has 28 identical components which function independently. The probability that a component…
A: From the provided information, Sample size (n) = 28 The probability that a component will fail is…
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Q: A bunch of mixed colored roses has 5 red roses, 3 pink roses, 2 white roses, and 2 yellow roses.…
A: Given, A bunch of mixed colored roses has 5 red roses, 3 pink roses, 2 white roses, and 2 yellow…
Q: A bag contains 20 marbles. 9 of them are red, 4 are black, and the rest are gold. Picking a red…
A: We make a table of winning using the given information: Color Red Black Gold Total Winning…
Q: Abigail needs to create a four-digit password to access her voice mail. She can repeat some of the…
A:
Q: Find the probability that Stephanie randomly selects a sugar cookie from the bag, eats it, then…
A: Given that Number of sugar cookies = 7 Number of raisin cookies = 6 Total number of cookies =…
Q: my bag I have 2 dimes, 2 nickles and 1 penny. I got to the candy shop and randomly pick two coins…
A:
Q: in a break room there are 3 bags of pretzels 2 bags of doritos and 4 bags of popcorn .find the…
A: Total number of bags = 9 (i.e. 3+2+4) Number of pretzels bags = 3 Number of Doritos bags= 2 Number…
Q: Alex decides to go to a casino and play his 3 favorite slot machines. He knows from experience that…
A: Given Alex decides to go to a casino and play his 3 favorite slot machines. Also given probability…
Q: Whitney wants to practice shooting for basketball. Her mom will give her $20 if she makes 3 free…
A: If each trial has only two possible outcomes, that is, success and failure, the probabilities of…
Q: One bag of marbles contains two red, one yellow, one green, and one blue marble. Another bag…
A: We have to find the probability of not selecting a yellow marble.
Q: Harry has 2 blue pens, 2 black pens and 4 red pens in his box. He picks one pen and records it's…
A: 2 blue pens, 2 black pens and 4 red pens _________________ 8 total pens
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- Julio rolls a 6 sided red die and a 6 sided black die, if the red die lands on 3 and the sum of the 2 die is greater than 5. Julio wins a point. Determine the probability that Julio will win a point.You are given the chance to play one of two games: One where there is a 20% chance of you winning 8 dollars and an 80% chance of winning 128 dollars. For the second game you have a 20% chance of winning two dollars and an 80% chance of winning 256 dollars. Which lottery is worth more on average, and how much is it worth discrete mathLydia is a project manager and submitted proposals for two different projects, Project X and Project Y to her boss. The probability of getting project X approved is 0.65. The probability of getting project Y approved is 0.77. The probability of getting at least one of the projects approved 0.90. The two projects are independent. True or False
- Mr. Schmidt surveyed his class and found that 70% of the students have at least one pet. If 21 of his students have at least one pet, how many students are in Mr. Schmidt’s class? Show all steps used to find your answer.If you roll two dice, each with 8 faces, what sum is most likely to appear from the two dice? Write out each step and explain what you are doing in each step.John can take one of two highways, Interstate A and Interstate B, to get to work each day. The probability that there will be a traffic jam on Interstate A on a given day is 0.65, and the probability that there will be a traffic jam on Interstate B is 0.2. The probability that there will be a traffic jam on at least one of Interstate A or Interstate B is 0.8. Determine the probability that both Interstate A and B will be congested. 0.235 None in the list 0.050 0.062 0.765 Submit Answer Tries 0/3 Determine the probability that Interstate B is congested given that Interstate A is congested. 0.250 0.077 0.812 0.062 None in the list Submit Answer Tries 0/3 Determine the probability that there is a traffic jam on Interstate A given that at least one of the Interstates has a traffic jam. 0.062 None in the list 0.250 0.812 0.077
- A machine has 32 identical components which function independently. The probability that a component will fail is 0.28. The machine will stop working if more than three components fail. Find the probability that the machine will be working. Round to the nearest thousandth.In a recent year, there were about 3,000,000 skydiving jumps and 21 of them resulted in deaths. Find the probability of dying when making a skydiving jump.A lock consists of 3 dials, where each dial has 4 letters. What is the probability of guessing the right combination in one try? Kay has an 80% probability of making a free-throw in basketball, and each free-throw is independent. Kay gets to take 2 free-throws and must make both to win the game. What is the probability that Kay's team will win the game? Two owners of a cattle ranch, Jo and Val, want to find the average weight for the ranch’s 200 cows. Instead of weighing all of the cows: Jo weighs 25 cows and gets an average weight of 1,350 pounds (stdev 50) Val weighs 100 cows and gets an average weight of 1,420 pounds (stdev 50) What is Jo’s margin of error, rounded to the nearest whole number? (The formula is )
- If you are dealt 3 cards from a shuffled deck of 52 cards, find the probability of getting one queen and two kings The probability isa city council consist of eight democrats and four republicans. if a ommittee of four people is selected, find the probability of selecting two democrats and two republicans simplify the answer