What is the approximate percentage students who scored between 61 and 91 on the test?

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: i! Thank you for the question, As per the honour code, we are allowed to answer three sub-parts at a…

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: From the given information, Mean =74 and standard deviation = 15.

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A:

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: Given:     Maximum score = 130, mean score = µ = 78,   standard deviation =σ = 12,  Part a:…

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: The average battery life of the Apple Iphone XR is 600 minutes.  The standard deviation is 30…

A: Given : mean = μ = 600 Standard deviation = σ = 30

Q: The distribution of the cost of a family’s dine-out meal has a mean of $55.30 and a standard…

A: Given ,Mean μ=$55.30Standard deviation σ=$4.00

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A:

Q: Imagine the average score on an exam ends up being 71 with a standard deviation of 10. If scores are…

A: From the given information, let us define the random variable X as the scores of an exam follows…

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: From the provided information, Mean (µ) = 70 Standard deviation (σ) = 11 X~N (70, 11) Here X be a…

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: Princess earned a score of 935 on a Mathematics test. The mean score was 850 with a standard…

A:

Q: Suppose that the distribution of scores on an exam is closely described by a normal curve with a…

A: we have a formula for calculating the percentile in case of normal curve  which is Mean+Z*standard…

Q: Joseph has taken two tests in his chemistry class. He scored 72 on the first test, for which the…

A: GivenFor first test:-x=72Mean(μ)=65standard deviation(σ)=8For second test:-x=60Mean(μ)=45standard…

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A:

Q: The mean score and the standard deviation in the Statistics test are respectively equal to 80 and…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: Sarah's score on the second exam was 34 for which the mean of all scores was 28 and the standard…

A:

Q: Suppose the mean percentage in algebra 2b is 70% and the standard deviation is 8% what percentage of…

A: Solution

Q: Show your solution:  If Peter got a 79 on a Math Test with a mean score of 85 and a standard…

A: The z-score is calculated asz=x-μσ

Q: The following graph portrays the distribution of the number of spicy chicken sand- wiches sold at a…

A: Empirical Rule: The percentage of values lies between one standard deviation from the mean is 68%.…

Q: In a Science test, the mean score is 42 and the standard deviation is 5. Assuming the scores are…

A: The mean is μ=42 and the standard deviation is σ=5 so it follows:…

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: As given, the mean is 80 and the standard deviation is 9.  The graph illustrating the distribution…

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: Sarah has taken two examinations in her statistics class. She scored 35 on the first exam, for which…

A: First exam score = 35 Mean of all scores for first exam = 32 Standard deviation of all scores for…

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A:

Q: In a Science test, the mean score is 42 and the standard deviation is 5. Assuming the scores are…

A: Solution: Let X be the score. From the given information, X follows normal distribution with mean…

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A:

Q: What is the approximate percentage of students who scored lower than 50 on the test? % What is the…

A: Let , X→N(μ=80 , σ=10) Our aim is to find the following :  a) What is the approximate percentage of…

Q: On a verbal skill test, the mean was 72 and the standard deviation was 7. If John scored 75, what…

A: Given data,Mean μ=72sd      σ=7If John scored 75z-score=?

Q: What percent of the students received a score below 64, if the mean grade on a test was 70 and the…

A:

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

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

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 distribution of heights of adult men is approximately normal with mean 69 inches and standard…

A: Given that information  Mean = mu = 69 inches  Standard deviation = s = 2.5 inches  Z score = -2.5…

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: We know by empirical rule that;…

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 weight of 100 female students aged 15 to 20 years have a mean of 120 pounds and a standard…

A: Solution: Given data: Sample size (n) = 100 Mean = 120 pounds Standard deviation = 6 pounds

Q: Pat took three exams. In Mathematics, her grade was 75, the mean was 90, and the standard deviation…

A: From the provided information, In mathematics, mean (µ) = 90 Standard deviation (σ) = 15 Pat grade…

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

A:

Q: n which test did she perform better?

A: Here use standard normal variable Z for comparison  Here mean and standard deviation is from 200…

Q: The graph illustrates the distribution of test scores taken by College Aigebra students. The maximum…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: A distribution of exam scores as a mean of 42.If your score is X=46, which standard deviation would…

A: Given data, μ=42X=46

Q: 2. On a standardized test, Sara had a score of 81, which was exactly 2 standard deviations below the…

A: Given : Test score = X = 81 Standard deviation = σ = 3

Q: on an exam, Tom scores 12 points above the mean and has a z-score of z=+2.00. the standard deviation…

A: It is given that the difference between mean and raw score is 12 and the z score is 2.

Q: In a recent​ year, the mean test score was 1539 1539 and the standard deviation was 310 310. The…

A: Given:

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: What is the approximate percentage of students who scored lower than 31 on the test? What is the…

A:

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

A: