0.If in a distribution mean is 40, mode is 60 and the tandard deviation is 10, then the coefficient of skewness will

Q: Suppose weights of the checked baggage of airline passengers follow a nearly normal distribution…

A: Let X be the random variable from normal distribution with mean (μ) = 45 pounds and standard…

Q: Suppose the population of IQ scores in the town or city where you live is bell-shaped, with a mean…

A: Solution-: Let, X= the population of IQ scores in the town Given: We find mean and standard…

Q: Suppose that a distribution of 400 items has mean 130 and standard deviation 5. Find the​ z-score of…

A: Given that.   X~N( μ , ?)   μ=130     , ?=5  , x=143   Z-score =( x - μ )/?

Q: Assume that the results are normally distributed. Pedro took an exam in a class in which the mean…

A: The formula for z-score is z = x - μσ where μ is the mean and σ is the standard deviation.…

Q: A set of data items is normally distributed with a mean of 500. Find the data item in this…

A:

Q: he scores on a test have a mean of 100 and a standard deviation of 15.  If a personnel manager…

A: given data, assume the variable is normally distributed.μ=100σ=15If a personnel manager wishes to…

Q: Wyatt earned a score of 670 on Exam A that had a mean of 750 and a standard deviation of 50. He is…

A: Here both exam A and exam B are normally distributed. We need to find the marks required in exam B…

Q: The mean and standard deviation of 200 items are found to be 60 and 20 respectively. If at the time…

A:

Q: Assume that the number of pieces per bag has a mean of 264 with a standard deviation of 3. use the…

A: Given :  the number of pieces per bag has a mean of , μ=264  a standard deviation of , σ =3   We…

Q: A data set with an unknown distribution has mean ?=360 and standard deviation ?=20.  State Chebyshev…

A: Given , μ = 360 , σ = 20

Q: or a distribution, the mean is 100 and the standard deviation is 4.  If a data value x has a value…

A: Given data,Mean μ=100sd σ=4If x=90z=?

Q: and mean

A: Given : Mean = 40.5 Standard deviation = SD = 10 Coefficient of Skewness = 0.4 Formula : 1) karl…

Q: Assume that 26% of students at a university wear glasses. Suppose 300 students are randomly…

A:

Q: An instructor gives a 100 point examination in which the grades are normally distributed. hte mean…

A: Given:- The sample follows a normal distribution with a mean, μ =60, & a standard deviation, of…

Q: b. Find the probability that a randomly selected person's lQ is over 87. Round your answer to 4…

A:

Q: Two different species of trees have heights that are approximately normal in distribution. Tree A…

A: Given that Tree A has a mean of 36 feet and a standard deviation of 3 feet.   Tree B has a mean of…

Q: Suppose that the mean of a set of data is 50.2 and the standard deviation is 4.2.  Assume that the…

A: Given  μ=50.2, σ=4.2, h=5.1  We want to find the new mean and standard deviation.

Q: If mean of a skewed distribution is 170 and mode is 158 , and standard deviation is 48 find…

A:

Q: 13. Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: The mean height of an adult giraffe is 17 feet. Suppose that the distribution is normally…

A: Answer: Given that:   ‘x’ is Normally distributed with                 Mean  µ = 17      standard…

Q: The engineer of large manufacturing company takes many measurements of a specific dimension of…

A: mean = 3.33 The standard deviation is given by σ = CV x x100 σ = 3.33 x 3.6100 = 0.1199

Q: Claire earned a score of 96 on Exam A that had a mean of 100 and a standard deviation of 10. She is…

A: Here Claire scores 96 for exam A. We need to find the mark equivalent to exam A for exam B. Given…

Q: Suppose that the amount of caffeine (in milligrams) in an 16 fluid ounce energy drink can be modeled…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Morgan earned a score of 275 on Exam A that had a mean of 300 and a standard deviation of 25. She is…

A:

Q: Assume that math test scores are normally distributed with a mean of 400 and a standard deviation of…

A:

Q: A professor gives a test to her calculus students. The scores are approximately normally distributed…

A: The normal distribution is the most useful theoretical distribution for continuous variables.…

Q: Layla earned a score of 140 on Exam A that had a mean of 200 and a standard deviation of 50. She is…

A: Given :  Score on exam A = X = 140  mean of X =  200  standard deviation of X =  50. Score on exam B…

Q: Assume that the test scores for a large class are normally distributed with a mean of 64 and a…

A: Solution-: Given: We find P(the class received a higher score than 78)=?

Q: A sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard…

A: Given statistics:Consider the variable x represents the distance scores in yards.The given…

Q: Suppose X, the grade on a midterm exam, is normally distributed with mean 80 and standard deviation…

A: Given information- Population mean, μ = 80 Population standard deviation, σ = 10 Suppose X is the…

Q: In a study of speed dating, female subjects were asked to rate the attractiveness of their male…

A: Range of a data set is the difference between the minimum and maximum observations.

Q: Christian earned a score of 80 on Exam A that had a mean of 200 and a standard deviation of 40. He…

A: Here we need to compute the marks Christian must obtain in exam B such that it's equivalent to exam…

Q: Elijah earned a score of 228 on Exam A that had a mean of 200 and a standard deviation of 40. He is…

A: We have to find score required in exam b.

Q: 1444. A set of examination marks is approximately normally distributed with a mean of 75 and…

A:

Q: Suppose the weekly rent of international students in Sydney is normally distributed with a mean of…

A: Assume,  X be the random variable which represents the amount of weekly rent in dollars. μ be the…

Q: Brooklyn earned a score of 850 on Exam A that had a mean of 550 and a standard deviation of 100. She…

A: Here we are to assume that scores on each exam are normally distributed.   For exam A, Brooklyn…

Q: Mason earned a score of 226 on Exam A that had a mean of 250 and a standard deviation of 40. He is…

A: First find the standardised Z score and the make equivalency

Q: ora earned a score of 14 on Exam A that had a mean of 20 and a standard deviation of 4. She is about…

A: Nora earned a 14 on Exam A score that had a mean of 20 and a standard deviation of 4. She is about…