Given the following data set that presents 30 test scores on an exam, find the 95th percentile. State your result/answer as a value with exactly two digits after the decimal  49.5, 48, 51, 50, 53.2, 52, 55, 54, 57, 56, 59, 58, 61, 60, 63, 62, 65.4, 64, 67.5, 66, 69, 68, 71, 70, 73, 72, 75.2, 74, 92, 88

Given the following data set that presents 30 test scores on an exam, find the median. State your result/answer as a value with exactly two digits after the decimal  49.5, 48, 51, 50, 53.2, 52, 55, 54, 57, 56, 59, 58, 61, 60, 63, 62, 65.4, 64, 67.5, 66, 69, 68, 71, 70, 73, 72, 75.2, 74, 92, 88

A professor grades students on three tests, four quizzes, and a final examination. Each test counts as two quizzes and the final examination counts as two tests. Sara has test scores of 95, 70, and 86. Sara's quiz scores are 91, 66, 76, and 85. Her final examination score is 95. Use the weighted mean formula to find Sara's average for the course. (Round your answer to one decimal place.)

2.  374, 403, 690, 112 Which score, when added to this data set, would be in the 40th percentile of the five values? a.113 b.375 c.404 d.403

Calculate the 75% percentiles, 25% percentiles, and the IQR for the following data:   9, 12, 20, 5, 14, 7, 16, 13   IQR = Q3 – Q1

Find the range for the following set of scores. 29,63,42,75,99,18,29,53,77 O a. 81 O b. 48 O C. 99 O d. 42

In a city with three high schools, all the ninth graders took a Standardized Test, with these results: High School Mean score on test Number of ninth graders Glenwood 77 259 Central City 90 344 Lincoln High 66 171 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 77.7 . Of course, that is incorrect. What is the mean score for all ninth graders in the city? USE EXCEL. Round your answer to one decimal place.

Here are 11 numbers in sorted order. -49, -45, -42, -37, -35, -35, -28, -25, -25, -21, -19 What is the 75th percentile of this data?

The midterm and final exam grades for a statistics course are provided in the data set below. Jaymes, a student in the class, scored 86 on both exams. Treat the given data sets as samples. Midterm: 80, 78, 85, 82, 79, 79, 78, 86, 80, 84, 78, 84, 80, 84, 81, 78, 81, 82, 78, 84 Final: 81, 88, 68, 69, 69 81, 82, 86, 76, 71, 72, 68, 77, 86, 68, 83, 84, 71, 81, 87 z-score for midterm: 1.857 z-score for final: 1.181 Based on the z-scores calculated above, which of Jaymes's grades is more unusual, the midterm grade or the final exam grade? Select the correct answer below: A. The absolute value of the z-score for the final exam grade is greater than for the midterm grade, so the final exam grade is more unusual. B. The absolute value of the z-score for the midterm exam grade is less than for the final grade, so the midterm grade is more unusual. C. The absolute value of the z-score for the midterm exam grade is greater than for the final grade, so the midterm grade is more…

Find the mean of the following data set. Assume the data set is a sample. Round your answer to the nearest hundredth, if necessary. 30 45 35 37, 38, 38, 39, 33, 33, 36, 32, 26, 43, 30 20