The following scores represent the finalexamination grades for an elementarystatistics course (treated as population):236079325774527082368077819541659285557652106475782580988167417183546472886274436078897684488490157934671782697463808561(a) Construct a stem-and-leaf displayrepresenting the given data set. Use the tensdigits for the stem.(b) Construct a frequency distribution tablefor the given data set. Use class size of 10and start from 10 (i.e. 10-19, 20-29 etc.).(c) Determine the following summarymeasures considering the providedfrequency distribution from (b): (e) Determine the z-score of the secondlowest and the second highest gradesamong the population.(f) What should be the minimum grade ofthe student in order for him/her to have agrade:(f.1) higher than 40% of the studentpopulation?(f.2) higher than 75% of the studentpopulation?(f.3) higher than 90% of the studentpopulation?Consider the frequency distribution from (b)for the calculations.

To create stem and leaf plot, we keep first digit in stem and another second digit in leaf.

Answered: 92 85 55 76 52 10 64 75 78 25 80 98 81…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Construct a frequency distribution of the data collected. Use classes with the first class ranging from 51-60 55 70 80 85 90 100 55 75 80 85 90 100 60 75 85 85 90 100 60 80 85 90 95 100 65 80 85 90 95 100
26 14 30 45 20 21 27 32 40 Age of residents in a neighbourhood 50 9 37 40 36 13 Create a relative frequency polygon for the data 52 10 35 12 36 57 28 51 47 48 42 42 52 1 53
Scores: 43 68 20 33 3947 60 40 47 8180 67 48 78 4855 69 55 55 5770 80 63 71 6362 69 70 39 5740 62 25 62 5257 54 46 81 4679 46 52 63 2861 37 59 48 55 Requirements to do: • Frequency distribution• Graphical Presentation (Pie, Line, Bar and Ogives)• Mean, Median, Mode for Grouped Data
The IQ scores of 50 students are given below. 85 85 85 86 87 87 88 89 89 90 90 91 93 93 95 98 99 99 100 100 101 101 102 103 106 106 107 109 111 111 112 112 112 112 113 113 113 114 114 115 115 116 117 118 119 119 119 85 - 89 90 95 (a) Construct a grouped frequency distribution for the data. Use 85-89 for the first class and use the same width for each subsequent class. Class 100 105 110 115 8 OB ४ 8 OF 890 8 OT 93 Frequency 10 8 8 5 3 9 7 X X X X X 88 93 X Or (b) Which of the following is the correct histogram for this data?
Here is a set of data. 11 199 208 352 418 628 788 792 821 937 946 972 Identify the 5 number summary (min, Q1, median, Q3, max)
Score: 0/6 0/6 answered Question 1 The following data represents the age of 30 lottery winners. 23 29 29 32 37 37 38 38 39 42 43 45 45 46 47 48 57 58 58 59 64 65 67 68 71 72 73 75 79 82 Complete the frequency distribution for the data. Age Frequency 20-29 30-39 40-49 50-59 60-69 70-79 80-89 Question Help: Message instructor Submit Question
attached - see images - complete the table below
The IQ scores of 50 students are given below. 98 119 119 101 110 92 117 102 105 99 106 110 119 114 98 110 112 103 85 99 107 89 110 115 89 107 101 100 87 94 101 111 102 102 90 92 91 96 110 113 90 116 (a) Construct a grouped frequency distribution for the data. Use 85-89 for the first class and use the same width for each subsequent class. Class Frequency 85 - 89
Here is a set of data. 11 126 192 442 466 508 556 589 660 715 807 823 832 998 Identify the 5 number summary (min, Q1, median, Q3, max)
Here is a set of data. 78 111 135 261 299 398 444 496 662 733 769 818 836 868 Identify the 5 number summary (min, Q1, median, Q3, max) , , , ,
Calculate the class width of this data and construct a frequency distribution for this data set using six classes. Enter the lower and upper class limits of each range in the respective boxes and then fill in the corresponding frequency. 45 66 38 69 62 24 53 36 71 68 31 37 41 46 43 18 63 60 27 26 Enter your class width: Class Range Frequency −- −- −- −- −- −-
The IQ scores of 50 students are given below. 89 111 104 105 106 104 96 96 116 89 113 93 93 87 86 98 108 13 88 104 92 108 89 95 94 97 89 115 116 103 96 86 88 109 99 99 88 93 86 106 88 118 113 96 93 119 87 85 105 110 (a) Construct a grouped frequency distribution for the data. Use 85-89 for the first class and use the same width for each subsequent class. Class Frequency 85 89 -| (b) Which of the following is the correct histogram for this data?

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