The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 120, while the mean score was 75 and the standard deviation was 11. 42 53 64 75 86 97 108 Use the "Empirical Rule", not a calculator or other technology. Do not round your answers. What is the approximate percentage of students who scored between 53 and 97 on the test? % What is the approximate percentage students who scored between 64 and 86 on the test? % What is the approximate percentage of students who scored between 75 and 86 on the test? % What is the approximate percentage of students who scored less than 53 on the test? %

Q: In 1955, Life Magazine reported that a 25-year-old mother of three worked, on average, an 80 hour…

A: From the provided information, Sample size (n) = 71 Sample mean (x̅) = 83 Sample standard deviation…

Q: Assuming that both tests measure the same kind of ability, who had the relatively higher score? It…

A: Linda's Standardized score: We want to compute the Z-score for the raw score X=680X = 680. The…

Q: The table on the right gives the annual income for eight​ families, in thousands of dollars. Find…

A: We have given the following dataFamilyABCDEFGHIncome4742474543454843

Q: pasting the output into Word and attaching it to your post. Graph the data as a histogram with a fit…

A:

Q: Consider a value to be significantly low if its z score less than or equal to -2 or consider a value…

A: Here, mean is 19.5 and standard deviation is 4.6.

Q: Answer the questions below. (a) The following number of people attended the last 9 screenings of a…

A: We will solve the problem.

Q: What would a histogram look like if the mean is 50 the median is 50 and the standard deviation is…

A: Mean is 50.Median is 50.Standard deviation is 1.6.

Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

A:

Q: AFTER ENTERING TEST SCORES FROM HER STATISTICS CLASS, THE INSTRUCTOR CALCULATES THE MEAN AND THE…

A: Given that an instructor calculated the mean and median of the test scores in a statistics class. It…

Q: In a psychology class, 40 students have a mean score of 89.5 on a test. Then 24 more students take…

A: Given,n1=40 , x¯1=89.5n2=24 , x¯2=78.3

Q: Given a scenario where n=100 and p=0.8, find the mean.

A: In this case the sample size is n = 100 and p = 0.8.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.