Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 21 days and a standard deviation of seven days. c. If one of the trials is randomly chosen, find the probability that it lasted at least 24 days. Sketch the graph and write the probability statement. The answer in my books is: The probability that a randomly selected trial will last more than 24 days is 0.3336.   How did the book arrive at this answer?

Q: The weights of steers in a herd are distributed normally. The standard deviation is 300lbs and the…

A: Solution: Let X be the weights of steers in a herd. From the given information, X follows normal…

Q: A student takes a multiple choice exam with 10 questions, each with four possible selections for the…

A: Given that, A student takes a multiple choice exam with 10 questions, each with four possible…

Q: You are the detective in a video game who is responsible for solving the mystery of the missing…

A: Given: The number of chickens that have been disappeared in past 37 weeks is n=952. Let X be a…

Q: Suppose, you play a game, and the result is simply "win" or "lose". For every 15 games played, you…

A:

Q: Let X be the number of successes in a fixed number of repeated trials and let p be the probability…

A: Let X be the number of successes in a fixed number of repeated trials and let p be the probability…

Q: A survey indicates that for each trip to the supermarket, a shopper spends an average of 45 minutes…

A: Given that, The lengthsnof time spent in the store are normally distributed and are represented by…

Q: 3. Teacher Annie commutes to school everyday with an average travel time of 45 minutes with standard…

A:

Q: Suppose that family incomes ina town are normally distributed with a mean of $1,200 and a standard…

A: Mean = 1200 Standard deviation = 600

Q: A population has a mean of 84 and a standard deviation of 12. A sample of 36 observations be taken.…

A: Given: Population mean μ = 84 Population standard deviation σ = 12 Sample size n = 36

Q: The weights of steers in a herd are distributed normally. The standard deviation is 200lbs and the…

A: Answer:- Given , The standard deviation, σ = 200lbs  The mean steer weight, μ = 1300lbs  Using…

Q: Suppose that the population of middle-school children has a mean of 350 on a reading test and σ =…

A:

Q: 34. What is asked in the given problem? A. P(X 43) B. P(43) 35. What formula is to be used in…

A: Given that  Mean=46.2 Standard deviation=5 Sample size=50

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: The population mean for the exam is 70 and standard deviation is 5 μ=70σ=5 Cody's exam score is 80

Q: Find the indicated probability and interpret the result. From 1975 through 2020, the mean annual…

A: 0.3922 or 39.22%Explanation:If you have any questions please let me know in comment box thankyou.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.