The time until recharge for a battery in a laptop computer under common conditions is normally distributed with mean of 275 minutes and a standard deviation of 50 minutes. What is the probability that a battery lasts more than four hours? (Round the answer to 3 decimal places.) Answer is Blank 1

Q: What is the probability of the ball landing on 21 playing Roulette? Make sure to round to 2 decimal…

A: Roulette has numbers 1 through 36 inclusive

Q: ers in the Math Department are required to pick a random team out of 30 major league teams to cheer…

A: There can be a possibility that one team is chosen by more than 1 teacher.  So total number of ways…

Q: The probability that a student in driving lesson will pass the written test for a non professional…

A:

Q: Find the probability of selecting someone who uses drugs. Round to 3 decimal places

A: Positive test resultsNegative test resultsSubjects uses drugs455Subjects does not uses drugs25480

Q: A poll showed that 56.1% of Americans say they believe that some psychics can help solve murder…

A: P(not A) = 1 - P(A)  When we are talking about % in probability  Than take 100% as total  So ,…

Q: п! 5"

A: To find the Convergence of the given series.

Q: A couple plans to have 14 children. Assume that girl and boy births are equally likely. Find the…

A: A couple plans to have 14 children. Assume that girl and boy births are equally likely.

Q: A class distribution is normal with mean of 75 and a standard deviation of 10. Find the following…

A: Given data; Mean = 75 Standard deviation  = 10 To find: P(X ≥ 90) = ?

Q: If the probability of having rain tomorrow is 40%, what is the probability of not having rain…

A: It is given that  P( rain tomorrow ) = 40%

Q: In a recent survey, 303 out of 350 residents of Salem, MA said they are planning on passing candy…

A: here given ,  303 out of 350 residents of Salem, MA said they are planning on passing candy during…

Q: A poll showed that 46.9% of Americans say they believe that some psychics can help solve murder…

A:

Q: s how many points n touchdowns are worth?

A:

Q: The median age of five people in a meeting is 40 years. One of the people who leaves the room are 60…

A: The median age of five people in a meeting is 40 years.

Q: What percentage of students guessed between 41 and 44

A:

Q: The average count calculation errors at a local accounting firm per 12-h shift are 2.8. What is the…

A: Given that : λ=2.8

Q: Find the probability of selecting either a non-smoker or a woman when you select a person at random…

A:

Q: The table summarizes results from 981 pedestrian deaths that were caused by automobile accidents.…

A: The union probability for any two events A and B is defined as P(A or B) = P(A)  + P(B) – P(A and…

Q: The mean IQ is 100 and the standard deviation is 15. What percentage of people fall between the IQs…

A: given  data, μ=100σ=15we have to find out the percentage of people

Q: The probability of rain today is 90% and the probability that Betty will forget to put the…

A:

Q: In a survey of 800 investors conducted by DBB Data Analytics Company, it was reported that 400…

A:

Q: The table summarizes results from 979 pedestrian deaths that were caused by automobile accidents.…

A: Given :  DriverIntoxicated? Pedestrian Intoxicated? Yes No Total Yes 54 66 120 No 282 577…

Q: The plasma cholesterol level (mg/dL) for patients who have not been diagnosed with heart disease and…

A: We have to find out given probability..

Q: A poll showed that 49.4% of Americans say they believe that statistics teachers know the true…

A: Let p be the probability that poll showed that 49.4% of Americans say they believe that statistics…

Q: Psychology students at a university completed the Dental Anxiety Scale questionnaire. Scores on the…

A: Given that, mean = μ=12, and standard deviation =σ=3.5

Q: 25  people out of 45 recieved an A on  the first exam .what percentage of student got an A ?

A: According to the given information,Total number of people, N = 45Number of people got an A, n(A) =…

Q: 75 out of 100 as a percentage

A:

Q: How did you get 52.5 from 9.25/7?

A: see below the explanation

Q: A couple plans to have 5 children. Assume that girl and boy births are equally likely. Find the…

A:

Q: Give five different numbers whose mean is 11 and range is 14.

A: Here use basic formula of mean and range

Q: If 64% of all Americans have a pet dog, find the probability that 3 randomly selected Americans will…

A: Given information- We have given a problem of binomial distribution. We have given that 64% of all…

Q: An art museum recently discovered that 9% of their paintings had been stolen and replaced with…

A:

Q: 1. A box of 50 units of product A contains 10 defectives. If ta random sample of 20 units are taken…

A:

Q: A poll showed that 59.5% of Americans say they believe that some people see the future in their…

A: Given that a poll showed that 59.5% of Americans say they believe that some people see the future in…