Q1/ For the below frequency distribution table calculate all the below requiments 1- Relative Frequency- 2- The Mean--.. " & Medium -- 3- Mode -- nan 4- The Mean Deviation -- 5- Variance & Standard Deviation --. 6- Standardized Score : Class Frequency 2-4 1 6-8 2 10-12 14-16 3 18-20 4

Q: The grade point average of students at a university is normally distributed, with a mean of 2.6 and…

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Q: The mean marathon finishing time for men and women was 268 minutes and 280 minutes respectively.…

A: From the given information, The mean marathon finishing time for men and women was 268 minutes and…

Q: A dataset of 23 values on a variable has a mean of 10.8 and a standard deviation of 3.2. The third…

A:

Q: Suppose that the distribution of Writing SAT scores from your state this year is normally…

A: Given,For male, mean (μ) =480 and standard deviation (σ) =110.For female, mean (μ) =500 and standard…

Q: Heights of men in America are usually a mean of 69.1 inches, with an SD of 2.67 inches. Women are…

A: Z score is given by,

Q: find an 80th percentile of the distribution of the average of 49 flyballs

A: Let M denote the average distance of fly balls for the sample of size n = 49.

Q: Among a clinic's patients having high blood cholesterol levels of at least 240 milliliters per…

A: In order to determine whether the new drug is effective in decreasing the cholesterol, there is a…

Q: The amount spent on textbooks for the fall term was recorded for a sample of five hundred university…

A: GivenMean(μ)=500standard deviation(σ)=100student textbook expenditure (x)=700

Q: When you have a skewed distribution, it is better to use-- than -- interquartile range;range…

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Q: The average time to recover from the flu for healthy adults age 18-24 follows a Normal distribution…

A: According to the given information, we have Given that the distribution is normal. Mean = 4.42…

Q: Jim Nasium claims that the mean A.C.T. score attained by two-year college students is 22. Al Dente…

A: Given, Sample size = 121 Sample mean = 23.3 Population standard deviation = 3.3   Under the claim,…

Q: In a recent year, Washington State public school students taking a mathematics assessment test had a…

A: Given Information:

Q: The mean serum-creatinine level measured in 12 patients 24 hours after they received a newly…

A: Note:  As per the company guidelines only 3 subparts can be answered.  Kindly, resubmit the question…

Q: a) An investigator took a random sample of Chief Financial Officers (CFOS) of public listed firms in…

A: Given, An investigator took a random sample of chief financial officers of public firms in Singapore…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Let x¯ be the average distance of fly ball hit to the outfield. The 80th percentile of the…

Q: During the busy season, it is important for the shipping manager at ShipMundo to be able to estimate…

A: Given that, μ=153 minutesσ=10 minutes The percentage of load times between 165 minutes and 177…

Q: Suppose the number of Covax and Pfizer vaccine bought by the Philippine government are normally…

A: Let, X=the number of vaccine μ =mean σ = sd

Q: The mean serum-creatinine level measured in 12 patients 24 hours after they received a newly…

A: 1) Hi! Thank you for the question, As per the honour code, we are allowed to answer three sub-parts…

Q: The salaries of professional baseball players are heavily skewed right with a mean of $3.2 million…

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Q: For each day of last year, the number of vehicles passing through a certain intersection was…

A:

Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.11 and a…

A: It is given that the mean is 8.11 and the standard deviation is 1.46.

Q: The daily sleep duration among college students is normally distributed with a mean of 8.13 and…

A: Here we will find the standard deviation of average sleep time,

Q: At Statesville High School, students’ unweighted GPAs are normally distributed with a mean of 2.9…

A: Let X be the number of student's unweighted GPA's are normally distributed . Given data : Mean =μ…

Q: The middle 55% of jobs should be within what range of times?

A: here given, mean = 50 minute standard deviation  = 6 minute

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: From the provided information, Mean (µ) = 2.61 Standard deviation (σ) = 0.44

Q: calculate that the mean age of students, where 30 is the mean and standard deviation is 6. Between…

A:

Q: The drive distance (in yards) for professional golfers is normally distributed with a mean of 308.04…

A: The normal distribution: A continuous random variable X is said to follow normal distribution with…

Q: The length of pregnancies are normally distributed with mean of 268 days and a standard deviation of…

A: Given : Length of pregnancies = X  X is normally distributed  Mean of X = 268 days  Standard…

Q: During the busy season, it is important for the shipping manager at Ship Mundo to be able to…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: The mean length of one-year-old spotted flounder, in millimeters, is 124 with standard deviation of…

A:

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: Empirical rule: The probability that the observation under the normal curve lies within 1 standard…

Q: The distribution of average hours of sleep per weeknight among college students is found to be…

A:

Q: How many times per day does an American access the internet? Suppose that the distribution of the…

A: Given that, The mean of the sampling distribution is, The standard deviation of the sampling…

Q: The daily sleep duration among college students is normally distributed with a mean of 8.13 and…

A: We have given that,  Let X be the random variable from normal distribution with mean(μ) = 8.13 and…

Q: if an average score of exams was 74 points for 24 students  the 25th student got 64 points whats…

A:

Q: Marian found that the average height of female students in her psychology class was 63 inches with a…

A: According to the provided data,

Q: A​ half-century ago, the mean height of women in a particular country in their 20s was 62.3inches.…

A: Given data,μ=62.3σ=2.25If n=29P(X>63.41)=?

Q: Suppose the number of Covax and Pfizer vaccine bought by the Philippine government are normally…

A: Let, X=the number of vaccine μ =mean σ = sd

Q: The distribution for the time a patient of a medical center spends waiting for an appointment is…

A: Given that the mean is 35 minutes and standard deviation is 12 minutes. That is, μ=35 and σ=12 Let…

Q: The Army reports that the distribution of head circumferences among male soldiers is approximately…

A:

Q: The Weather Underground reported that the mean amount of summer rainfall for the northeastern US is…

A: Let µ be the mean amount of summer rainfall for the northeastern US.Claim is that the mean amount of…

Q: For each day of last year, the number of vehicles passing through a certain intersection was…

A: Given: Population mean μ=375 Population standard deviation σ=25 Let X ~ N (375, 252)

Q: The daily high temperatures in Philadelphia for the first 15 days in February is normally…

A:

Q: After the physical training required during World War II the distribution of a mile run times for…

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Q: For each day of last year, the number of vehicles passing through a certain intersection was…

A: The normal distribution is a symmetric bell-shaped distribution with two parameters μ and σ. mean,…

Q: A distribution of newly manufactured amusement park bumper cars has mean 400 pounds and standard…

A: Explained below

Q: During the busy season, it is important for the shipping manager at ShipMundo to be able to estimate…

A: Given,mean(μ)=156standard deviation(σ)=15

Q: What percentage of teenagers sleep less than 9 hours?

A: