The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 140, while the mean score was 79 and the standard deviation was 14. 37 + 51 + + + 65 79 93 Distribution of Test Scores What is the approximate percentage of students who scored between 79 and 93 on the test? % + 107 121 What is the approximate percentage of students who scored between 51 and 107 on the test? What is the approximate percentage of students who scored between 79 and 121 on the test? % What is the approximate percentage of students who scored higher than 121 on the test? 1% 70

Q: After 8 points are added to each score in a sample, the mean is found to be M = 40. What was the…

A: Let us have n number of scores in a sample. After adding 8 to each score sample mean will be M = 40…

Q: Suppose the mean percentage in Algebra 2B is 70% and the standard deviation is 8%. What percentage…

A: GivenMean(μ)=70%standard deviation(σ)=8%

Q: Suppose that the mean score of a class of 32 students was 80. The 20 male students in the class had…

A: Given,The mean score of 32 students(x¯)=80The mean score of 20 male students(M)=68

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

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: A survey found that women's heights are normally distributed with mean 63.7 in and standard…

A: In a survey, Height of women follows the normal distribution with mean 63.9 in and standard…

Q: Suppose that the mean score of a class of 33 students was 80. The 17 male students in the class had…

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 mean score of 25 students in an English test is 85. If three more students took the test and had…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: 3, 3, 4, 6, 6, 8, 9, and 10.   Compute the mean of these test scores to the nearest 0.01.

A: 3,3,4,6,6,8,9, and 10Number of observation is 8The mean is the average of the given numbers.

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

A: QUESTION 1 SOLUTION: (less than 54) Step 1: Convert to z-score Formula:z=σx−μ​where;x = raw scoreμ =…

Q: The mean score on a set of 25 tests is 74. Suppose two more students take the test and score 68 and…

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Q: a student had 93% in chemistry had a class average of 85% and standard deviation of 8%. the same…

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

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

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

A:

Q: Suppose there are 30 students in a class. the18 male students in the class have a mean score of 72,…

A:

Q: Suppose the mean percentage in Algebra 2B is 70% and the standard deviation is 8%. What percentage…

A:

Q: Tina's science fair project was to estimate the mean amount of chemicals in her city's water supply.…

A: Solution:  Relationship between the sample size and the confidence interval:   If the sample size or…

Q: The mean score on the ACT test was 21.5 and the standard deviation was 5.0. The mean score on the…

A: ACT score μ1 = 21.5σ1 = 5.0x1 = 26SAT score μ2 = 515σ2 = 100x2 = 605 which score will relatively…

Q: The mean score on a set of 17 tests is 85. Suppose two more students take the test and score 62 and…

A: we need to find new mean using given conditions

Q: he first 8 data points have mean 110.63. The second 78 data points have mean 3.02. What is the…

A: From the given information, Consider,  n1=8, x1=110.63n2=78, x2=3.02

Q: What is the p value if the mean is 98.6, n=7, t= -2.114?

A: The P-value is the probability that provides strong evidence in favor of the alternative hypothesis.…

Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

Q: An exam is given to all three people in an accounting department.  On this exam, the mean is 102 and…

A: According to the given information, we have Mean = 102 Standard deviation = 7.5

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: 36) Answer:- Given, The IQ scores (X) of adults are normally distributed with a mean of 100 and a…

Q: Suppose that the mean score of a class of 33 students was 80. The 19 male students in the class had…

A:

Q: Which test was better?. Gina took a midterm in her math class and her biology class. After she gets…

A: The objective is to calculate z score for math test for Gina. we have given  x=47 mean(x)=39…

Q: Tony decided that he wants to pursue a master degree in business. One of the requirement is the GMAT…

A: Given that  Tony's GMAT = X = 730 Mean = 556 , Standard deviation = 116

Q: Baseball team A of n=7 scores has a mean = 8.  Baseball team B of n=3 scores has a mean = 12.  if…

A: From the provided information,

Q: Suppose that the mean score of a class of 34 students was 78. The 19 male students in the class had…

A: Basic formulas for mean has applied.

Q: Suppose there are 5 students in a room. The mean age is 20.0 years, and the median age is 19. If the…

A: When the observations are 5 the mean and median of the data set areMean = 20.0 years Median= 19…

Q: The line drawn within the box of the box-and-whisker plot represents the mean.   TRUE FALSE

A:

Q: I NEED HELP 1. Consider a distribution of 10 scores: 2, 5, 8, 1, 9, 3, 0, 3, 9, and a mystery score…

A:

Q: You are going to convert raw scores to z scores. The z scores are -2, -1, 0, +1, +2. The raw scores…

A: We have given that  X~N( mu, sigma^2) Z-score =(x- mu)/sigma

Q: Suppose that the mean score of a class of 35 students was 74. The 18 male students in the class had…

A:

Q: 2. Suppose the following are the number of times a student looks at their phone while the professor…

A: Given : Obs. (X) 4 5 6 8 1 2 4 4 3

Q: The mean grade of in the final examination in Mathematics was 85 and the standard deviation was 7.…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Suppose that the mean score of a class of 34 students was 79. The 15 male students in the class had…

A: Given that the mean score of a class of 34 students was 79. The 15 male students in the class had a…