2. 8, 3, 3, 17, 9, 22, 19 3. 11, 8, 2, 5, 17, 39, 52, 42 4. 101. 88. 74, 60, 12. 94, 74, 85

Q: Assume that the amount of time people can hold their breath is normally distributed with a mean of…

A: Since, you have asked multiple question, we will solve the first question for you. If you want any…

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated. The…

A: Given that  Sample size n =9 Population standard deviation =3

Q: Describe about the mean absolute deviation.

A:

Q: Georgia is taking a course in statistics (course A) and a course in criminal justice (course B). At…

A: It is required to find the z-scores for the points obtained in the statistics and criminal justice…

Q: he distribution of heights of adult males has a mean of 69 inches and a standard deviation of 4…

A: Solution-: Let, X= The distribution of heights of adult males Given: (inches) We find, P[ he…

Q: Joe and peter each take 10 swings at a baseball. Joe hits a baseball an average of 290 feet with a…

A: Given information- We have given that Joe and Peter each take 10 swings. Joe hits a baseball an…

Q: At Northwest Nursing School, the average score a student must make on and entrance exam is 142…

A: The objective of this question is to find the cutoff score that a nurse must make to be considered…

Q: Working in the garden pulling weeds/planting flowers burns an average of 200 calories per hour. If…

A: given data μ=200σ=9normal distribution P(200<x<225)=?

Q: Isn't here the standard deviation equal to 4, not 2, as the tutor wrote?

A: Solution-: Given: μ=-3,σ=4 We want to find, P(0<X<2)=? Draw the picture.

Q: there are 300,000 people review  for the movie  pupulation mean is 7.2 stars and standard deviation…

A:

Q: Use Chebyshev's theorem to solve the problem. Find the least possible fraction of numbers in a data…

A: Consider that a random variable X has expected value μ and standard deviation, σ. Now, according to…

Q: The average number of cavities that thirty-year-old Americans have had in their lifetimes is 8. Do…

A: As per guidelines expert have to answer first question three subparts only dear student please…

Q: Working in the garden pulling weeds/planting flowers burns an average of 200 calories per hour. If…

A: It is given that  Mean, μ = 200 Standard deviation, σ = 9 Z-Score, Z = ( X - μ )/σ

Q: When my son was 7, he would get dressed without being asked 30% of the time.  Over a 10 day period,…

A: Solution

Q: ores are normally distributed with a mean of 1518 and a standard deviation of 325. If 1 SAT score…

A: Given: μ=1518, σ=325 The corresponding z-value needed to be computed is: If 1 SAT score is randomly…

Q: once, so that they na standard deviat

A: Alex cuts four sticks one at a time and their lengths are independent  with mean = 8 and Standard…

Q: Energy consumption for single family comes is a mean of 1050kw and standard deviation of 218kw. Find…

A: Given information- Population mean, μ = 1050 kw Population standard deviation, σ = 218 kw We have to…

Q: ou find the standard deviation in the most easiest way?

A: The standard deviation is used to calculate the variability of the data set. It tells us about the…

Q: does the range and standard deviation remain unchanged because the addition of 7 is a constant so…

A: given data  mean = 74 median = 76.5 range = 65 standard deviation = 11 add 7 points to each score…

Q: It is possible to have a standard deviation of -1 for some data set? True or False

A: See the below solution

Q: Find the probability that a randomly selected year of rain in Sydney, Australia has a yearly…

A: Given Population mean μ=137, population standard deviations σ=69, Let X be the rain in Sydney Note:…

Q: Americans (on average) individually eat 16 pounds of seafood each year with a standard deviation of…

A: Given that   x̄ = 14 , μ = 16 , ? = 7 , n = 4

Q: You are to pick 4 numbers from 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 such that the 4 numbers…

A: