Given the test scores of 40 students below, determine a) the 20* percentile, 30 percentile, and b) the first quartile? the second quartile? 3" quartile and the 4 quartile percentile? Test Scores of 40 students: 35, 36, 36, 40, 44, 47, 50, 55, 56, 58 60, 62, 65, 67, 69, 70, 70, 73, 74, 75 78, 79, 79, 80, 80, 83, 84, 85, 87, 88 89, 90, 91, 92, 93, 94, 97, 98, 99, 99

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A: Given data set is13,27,95,38,21,50,64,24,52,27arrange the data in ascending order…

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Q: The following stem and leaf plot represents the times in minutes required for 26 co- workers to…

A: Dear student, If you find this solution helpful please upvote ? it. The solution is given below :

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A: Frequency for an interval is equal to the number of observations that lie in that interval. For…

Q: For the raw scores of 8, 10, 17, 22, 6, 20, 21, 22, 19, 30 How to convert them to z scores?

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Q: The 3rd quartile of the ages of 300 students of Math class is 22 years. Which of the following…

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Q: The test scores of 20 students are listed below. Find the 34th percentile

A: We have to find the 34th percentile from the given data set.

Q: 30, 25, 67, 130, 94, 41, 40, 55, 54, 35, 38, 67, 81, 126, 21, 45, 553, 70, 55, 47, 36. a) Find the…

A: Given: N=21(odd number) Data 30 25 67 130 94 41 40 55 54 35 38 67 81…

Q: The 20 scores below were recored from a math test: 75, 64, 82, 68, 75, 73, 68, 78, 80, 97, 85, 68,…

A: Step-by-step procedure to obtain frequency distribution table using Excel: Select the data and go…

Q: find 2nd quartile for given data 12,15,6,3,7,9,8,4,14,19,18,16,13,15,14,12,15,5

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Q: The grades of a student on 12 examinations were 90, 78, 85, 88, 75, 92, 86, 85, 94, 84.91, and 83.…

A: arrange data in accending order : 75,78,83,84,85,85,86,88,90,91,92,94   sample size (n) = 12

Q: The third quartile of 4, 6, 8, 9, 9, 11 is: Select one: O a. 8 O b. 5.5 Oc. 9.5 O d. 8.5

A: The third quartile (or upper quartile or 75th percentile) is the median of the upper half of the…

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A: The t test are used to make mean significant between the sample and population. It also used to make…

Q: 1. Given the following test scores of 27 students below; determine the 1st, 2nd, 3rd, and 4th…

A: Solution

Q: class contains 8 students. Find the number of ordered sample of size 3 with replacemen

A: Since , the class contains 8 students. Our aim is to find the number of ordered sample of size 3…

Q: 1. Given the following test scores of 27 students below; determine the 1st, 2nd, 3rd, and 4th…

A: Data given 51, 51, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 69, 70, 72, 74, 75, 77, 78, 80, 86,…

Q: Every year, the students at a school are given a musical aptitude test that rates them from 0 (no…

A: x(1) Frequency (f)(2) f⋅x(3)=(2)×(1) cf(5) 0 3 0 3 1 5 5 8 2 0 0 8 3 6 18 14 4 4 16 18 5…

Q: A teacher gives a, 30-point test, to 14 students. The scores are as follows. 10, 8, 23, 14, 16, 29,…

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Q: 75, 77, 68, 77, 79, 94, 89, 77, 61, 81, 75, 75, 86, 72, 75, 81, 77, 74, 89, 75, 81, 89, 68…

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Q: 5. In the ordered data : 20,a,25,30,40,b,50 if the mean is 33, and the first quartile is 22.5, find…

A: Provided information is; Data : 20 , a ,25 ,30 ,40 ,b ,50 Mean for given data = 33 First quartile =…

Q: Find the 20th and the 75th percentiles for these weights?

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Q: 1)Alabama    mean = 48;  SD = 1.5       Angie  took the test in Alabama and scored 50;       Angie's…

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Q: The following values represent the heights of 12 students (in inches) taking a math class. 72, 61,…

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A: Sample  A : 2,6,3,8,9 Sample  B : 8,10,10,3,5,3,7

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Q: 3. The total scores of 40 students in a class are given below: Total Points: 80; 85; 67; 90; 65;…

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Q: The mathematics SAT scores of the seven students in a mathematics seminar are 533, 553, 578, 586,…

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Q: find 5th quartile for given data  12,15,3,4,12,18,17,5,6,9,20,19,13,4,7,17

A: Solution  Its 50 th quartile not 5th quartile

Q: The observation values for a random sample with a sample volume of 19 are as follows. X: 18, 11, 17,…

A: Given data: X: 18, 11, 17, 11, 13, 12, 19, 19, 10, 13, 12, 21, 19, 18, 17, 13, 11, 20, 22

Q: Frequency of Guests 100 - 109 60 110 119 75 120 - 129 130 - 139 140 - 149 14 What is the class…

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Q: A test was given to three sections, section 1, 2, and 3. Out of the three, all students from section…

A: For section 1. Data : 50 , 50, 50, 50, 50  Measure of variation : Here all points are same means no…

Q: A class took an English test and a Math test. The test scores of 25 students for both tests are…

A: Given:   English Math 60 80 35 40 80 45 88 85 76 90 30 95 66 65 50 75 75 55…

Q: 2. Which gender is taller, males or females? A sample of 14-year-olds from the United Kingdom was…

A: It is given that the data of heights of students ( in cm ). Data for male in ascending order: 151,…

Q: Men

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Q: from 1 to 10. The graph below summarizes their choices. The height of the bar above a number…

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Q: Any quantity that is computed from a sample is called

A: Sample :  It is subset of population

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