he mean for a data set is 75. The standard deviation is 4​, and the​ z-score is −0.38. Find the raw score

Q: On a nationwide math test, the mean was 75 and the standard deviation was 10. If Roberto scored 85,…

A: The formula of Z-score is,

Q: Alice was told that her reading test score was 3 standard deviations below the mean. If test scores…

A: Z-score is the measure of how far the standard deviation is away from the mean (above/below). Above…

Q: The mean of a set of data is 108.06 and its standard deviation is 115.45 What is the z score for a…

A: Z-score = 3.3045 answer.

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: find the z-score for the value 69, when the mean is 96 and the standard deviation is 5.

A:

Q: In a given school year, the ACT test mean score was 21 with a standard deviation of 4.9.  The same…

A:

Q: Find the​ z-score for the value 55​, when the mean is 79 and the standard deviation is 5.

A: The z score indicates how many standard deviations that a data points away from the mean. It can be…

Q: What will be the interpretation if correlation (r) has a value of -.5439? At what percent does the…

A: Correlation coefficient "r" measures linear relationship between between two variables. It lies…

Q: uppose a student got an examination score of 90 in Statistics and Probability, where the mean was 75…

A: We have given that.   X~N( μ , ?^2 )   μ=75     , ?=5  , X=90      for  istatistics and…

Q: On a nationwide math test, the mean was 63 and the standard deviation was 10. If Roberto scored 85,…

A: GivenMean(μ)=63standard deviation(σ)=10score(x)=85

Q: find the z-score for the value 95, when the mean is 77 and the standard deviation is 2.

A: Given, mean=77 standard deviation=2 find the z-score for the value 95

Q: Justin got a score of 85 on an GE MMW examination for which the mean is 75. Justin realized that the…

A: Considering the mean score in the specified examination as μ and variance of scores in the…

Q: If the mean of a list of numbers is 16.7 and the standard deviation is 0,

A: Mean is a measure of central tendency. It is one of the most important measures to find out around…

Q: On a spelling test, the standard deviation is equal to 0.94. What does this mean

A: We know that the Standard deviation tells us that how much data is scattered around the mean value…

Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

Q: John got 83 on a test, with a standard deviation of 10.73 and the class mean was 77.1. Paul got 88…

A: From the provided information, John got (X) 83 on a test with a standard deviation (σ) of 10.73 and…

Q: On a nationwide math test, the mean was 52 and the standard deviation was 4. If Roberto scored 85,…

A: The z score formula is,

Q: Roel's score in Math was 90 with a mean of 85 and a standard deviation of 1.5. His score in English…

A:

Q: If the mean is 8, then the mean absolute deviation of the scores 10 9 3 8 10 is?

A: Given mean (μ) = 8 Then Mean Absolute Deviation is given by  1n∑xi-μ

Q: A successful basketball player has a height of 6 feet 4​inches, or 193cm. Based on statistics from a…

A: The z-score identify that the value how many standard deviations from the mean. If the z-score is…

Q: Omar is trying out to be a firefighter.  On the written exam, the mean of everyone who takes the…

A:

Q: The mean difference equals 1.2, the standard deviation of the difference equals 1.5, and n equals…

A: It is given that mean difference is 1.2, the standard deviation of the difference is 1.5 and the…

Q: Bill scored 35 on a college algebra exam, where the mean was 25 and the Standard Deviation was 5.…

A: Given that the score for algebra exam is 35, mean is 25 and standard deviation is 5. z score for…

Q: Suppose that Harry and Ron take an exam for which the mean score is 60 and the score of standard…

A: Given information- Population Mean µ = 60 Standard deviation (σ) = 10 Harry's score = 80

Q: In the final Examination in Statistics, the mean grade was 82 and the standard deviation was 8. In…

A:

Q: In the final Examination in Statistics, the mean grade was 82 and the standard deviation was 8. In…

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

Q: A pharmacologist measured the concentration of dopamine in the brains of several rats.The mean…

A: Mean = 1269 Standard deviation = 145

Q: Looking at the test data, Jason saw that his score was a 2.5 with a mean of 79 and a standard…

A: We will find the actual score as following.

Q: A researcher believes the mean weight of male turtles is more than 205 pounds, she samples 18 male…

A: Denote μ as the population mean weight of male turtles.   The claim is that the mean weight of male…

Q: For a set of data, μ = 71, X=35, z = -0.60. What is the standard deviation of the population?

A: Given that.   X~N( μ , ?^2 )   μ=71   , ?=?  , X=35 , z=-0.60   Z-score =( x - μ )/?

Q: a nationwide math test, the mean was 60 and the standard deviation was 7. If Roberto scored 85, what…

A: Given data,Mean μ=60sd    σ=7 If Roberto scored 85z-score=?

Q: What percentage of the widget Weights lie between 55 and 79 ounces when the mean is 61 and the…

A: We have to  given probability...

Q: The mean grade in the Physics examination was 73 and the standard deviation was 8. Determine the…

A:

Q: Max scored an 80 on her psychology quiz, but the class as a whole averaged a 40. If the standard…

A:

Q: According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the…

A: Given X is normal Distributed with mean µ = 65.0 and standard deviation σ = 3.0 Need to find Z score…

Q: In a certain test in Calculus, the mean score of a group of 100 students was 30 and the standard…

A: The mean for calculus is 30 and standard deviation is 8, the mean for physics is 52 and standard…

Q: A distribution of exam scores has a mean of μ = 78. If your score is X = 80, which standard…

A:

Q: The mean grade of Adrian in the final examination in mathematics was 85 and the standard deviation…

A: 1) Given that: Mean for mathematics = 85 Standard Deviation for mathematics = 7 Mean for science =…

Q: A student scored 76 on a general science test where the class mean and standard deviation were 82…

A: For Science x¯=82s=8x=76 z=x-x¯s=76-828=-0.75

Q: If the average height of all women is 63.5 inches and the standard deviation is 2.5 inches,…

A:

Q: The mean score on the Stats exam was 75 points with a standard deviation of 5 points, and Gregor’s…

A: The mean score on the Stats exam was 75 points with a standard deviation of 5 points, and Gregor’s…

Q: Suppose you are told that you scored  two standard deviations below the mean on a measure where the…

A:

Q: Alicia scored a 70 on her psychology quiz, but the class as a whole averaged a 40. If the standard…

A: From the provided information, Population mean (µ) = 40 Standard deviation (σ) = 10 Let X be a…

Q: on a nationwide math test,the mean was 63 and the standard deviation was 7. if roberto scored…

A: According to the given information, we have Mean = 63 Standard deviation = 7

Q: In ABC High School, the mean IQ test score of the first year students is 102 and the standard…

A: For the given data  What is the z-score of a student whose IQ test score is 106?

Q: The mean for data set is 59, the standard deviation is 4, and the z- score is 0.03, what is the raw…

A: Here given that the mean =59, standard deviation=4, z score=0.04, we need to find the raw score x.

Q: For the layperson, explain what the standard deviation of 2.2 means compared to the standard…

A: The standard deviation of women for tallest acceptable height is 2.2. It can be explained as, each…

Q: Find the standard deviation for this data set. if a one goal hockey game was added to this data set,…

A: From the plot representing the number of goals scored per game, there are three games in which three…

Q: The average score on the Stats midterm was 71 points with a standard deviation of 5 points, and…

A: Given that mean = 71 and SD = 5 And the z score is given by Z = 1

Q: Suppose the main percentage in algebra is 70% and the standard deviation is 8% What percentage of…

A: Given,  mean value(μ) =70%  standard deviation(σ) = 8%Z=x-μσZ1=62-708=-1Z2=94-708 =3