The average IQ in Sarah’s class is 105 with a standard deviation of 15. What is the z score of Sarah with an IQ of 93?

Q: A student has taken a 50-point exam and wants to know how his score of 38 compares to the scores of…

A: It is given that Mean = 40 Standard deviation SD = 4 Score X = 38

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

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: A data set has a mean of 300 and a standard deviation of 40. What value would have a z-score of z =…

A: z-score of z = - 2 is -7.55 Reason: z-score of z = - 2=-2-meanstandard deviation=-2-30040=-7.55

Q: The scores of the students in the final examination in Advanced Algebra are normally distributed…

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

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Q: SAT scores are normally distributed with a mean of 1500 and a standard deviation of 300. ACT scores…

A: Z-Score:             It is a dimensionless quantity that is used to indicate the signed, fractional,…

Q: mean of μ = 78. If your score is X = 70, which standard deviation would give you a better grade: σ…

A: A distribution of exam scores has mean µ=78, and σ2=42 i.e. X~N(µ=78, σ2=42) If exam score is x=70,…

Q: For Jimena to be accepted into her favorite college, she will have to earn an entrance exam score at…

A: The exam scores are normally distributed with the mean, μ=790, and standard deviation, σ=50. Now, it…

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: Annabelle earned a score of 410 on Exam A that had a mean of 450 and a standard deviation of 40. She…

A: Here we need to find the score for exam B such that it is equivalent to the score of exam A. Inorder…

Q: A professor finds that the grades in a large class are normally distributed. The mean of the grades…

A: It is given that mean is 64 and standard deviation is 10.

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: an exam score has a mean of 506 and a standard deviation of 100. What exam score corresponds to a…

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Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122…

A: Given data,Mean μ=122sd σ=16

Q: he scores on a psychology exam were normally distributed with a mean of 65 and a standard deviation…

A: Given,μ=65σ=6

Q: Ava scored a 92 on a test with a mean of 71 and a standard deviation of 15. Charlotte scored a 688…

A: HERE GIVEN , Ava scored a 92 on a test with a mean of 71 and a standard deviation of 15. Charlotte…

Q: a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 34 beats per…

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Q: If the mean score on the final exam is 70 with a standard deviation of 10 then the test score of a…

A: Given Mean =70 Standard deviations=10 Z=-1.5

Q: mark is provided a score of X=57 that corresponds with a score of X=57 that corresponds with a…

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Q: Pattys final exams have an average of 78 and a standard deviation of 6.  If she wants 4% of her…

A: X follows a Normal distribution with mean = 78 and S.D = 6 Then z=(x-mean)/SD = (x-78)/6  follows…

Q: A student scores 80 in math which has a mean of 70 and standard deviation of 10. He also scores 85…

A: GivenStudent scores 80 in math with Mean(μ)=70standard deviation(σ)=10student scores 85 in english…

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 118…

A: Note: Please repost d subpart as i can answer only 3 subparts as per my policy. Given data,…

Q: The scores of the students in the final examination are normally distributed with a mean of 72 and a…

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Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: Given data mean=69.0 inches standard deviation=2.8 inches x=79.7 inches

Q: Suppose that the mean IQ in the United States is roughly100 and the standard deviation is 15 points.…

A: Given: Meanμ=100Standard deviationσ=15 Consider, X be the random variable that follows the normal…

Q: The mean price of the fish in a pet shop is $2.93, and the standard deviation of the price is $0.59.…

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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: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 119…

A: Given data,μ=119σ=16P(X≥160)=?

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 121…

A: X follows a Normal distribution with mean = 121 and S.D = 19 Then z=(x-mean)/SD = (x-121)/19…

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

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

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Q: A distribution of exam scores has a mean of μ = 78. a. If your score is X = 70, which standard…

A: Given: μ=78 More the z score, better grades obtained from the standard deviation. a. The z score  is…

Q: The average age of senators in the 108th Congress was 58 years. If the standard deviation was 11…

A: Average or mean (μ) = 58 years and standard deviation (σ) = 11 years  Then, We will find the z…

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

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Q: Jack had an average score of 75 with a standard deviation of 3. Mikes z-score was 1.85. His actual…

A: We have given that,  X be the random variable from normal distribution with mean Or average score…

Q: If the mean of the data is 130 with a standard deviation of 10, what percent of the data falls…

A: Given μ=130 and σ=10 Consider the probability that the data falls between the values 100 and 160 is,…

Q: The hourly pay of a sample of nurses is approximately normal with a mean of $36.25 and a standard…

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: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122…

A: Given that, The systolic blood pressure of adults in the USA is nearly normally distributed with a…

Q: Suppose you have already calculated the mean, the average deviation, and the standard deviation of…

A: (a) Condition for Average Deviation: If the value of the observation is increased or decreased by a…

Q: In a test, the average of the grades is 80 and the standard deviation is 5. John's grade is 70, so…

A:

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 121…

A: Here the systolic blood pressure of US adults is normally distributed with mean=121 and SD=21. Also…

Q: The average score on the Stats midterm was 79 points with a standard deviation of 4 points, and…

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Q: A distribution of exam scores has a mean of μ= 80. If your score is X = 72, which  standard…

A:

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 118…

A: The parameter {\displaystyle \mu } is the mean  or expectation  of the distribution (and also its…

Q: . A professor finds that the grades in a large class are normally distributed. The mean of the…

A:

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 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: Karen scored a 76 on an exam whose mean is 74 and whose standard deviation is 8. Find her z score.

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