2. A psychologist estimates the I.Q of 28 students. The values are as follows:103, 86, 94, 97, 100, 113, 102, 76, 95, 101, 99, 83, 94, 84, 78, 102, 105, 114, 88, 84, 90,100, 96, 98, 78, 96, 79.Form a frequency distribution with class intervals of width 5 each.

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Answered: 2. A psychologist estimates the I.Q of…

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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Find the following frequency distribution: Age at the First Car Purchase (in Years). Class 16 - 19 20 - 23 24 - 27 28 - 31 32 - 35 Frequency 12 8 15 12 9 What is the total frequency?
Your grandma wants to review the distribution of the ages of her Facebook friends. The ages of a sample of her 20 Facebook friends are as follows: 61 77 38 49 53 39 70 56 62 65 53 69 56 71 61 73 59 34 50 46 а. Construct a frequency, relative frequency, and cumulative relative frequency distribution for the data, using five class intervals. Please use the value 30 as the lower limit of the first class, and the value 80 as the upper limit of the final class.
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Identify the lower class limits, upper class limits, Blood Platelet Count of class width, class midpoints, and class boundaries for the given frequency distribution. Also identify the number of individuals included in the summary. Males (1000 cells/uL) Frequency D 0-99 100-199 49 200-299 91 300-399 10 400-499 500-599 600-699 1 Identify the lower class limits (in 1000 cells/uL). 10 (Type integers or decimals. Do not round. Use ascending order.)
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Among fatal plane crashes that occurred during the past 55 years, 336 were due to pilot error, 93 were due to other human error, 204 were due to weather, 601 were due to mechanical problems, and 572 were due to sabotage. Construct the relative frequency distribution. What is the most serious threat to aviation safety, and can anything be done about it?
When 30 randomly selected customers left a convenience store, each was asked the number of items he or she purchased. Construct an ungrouped frequency distribution for the data. 2 10 5 4 7 6 3 9 7 6 7 6 4 9 7 6 3 4 3 5 6 10 10 9 10 4 3 2 8 5
The following are a sample of ages of respondents to a survey. 20, 40, 45, 49, 50, 50, 51, 55, 60, 80 Answer the following questions. 1. What is the class width of the frequency distribution if you are to use 7 classes? 2. Form the frequency table. Class Limits 3. What are the outliers? OA. There are no outliers OB. 80 OC. 20 OD. 20 and 80 Frequency
When 30 randomly selected customers left a convenience store, each was asked the number of items he or she purchased. Construct an ungrouped frequency distribution for the data. Create a histogram for the data in #7. Create a frequency polygon for the data in #7. 2 10 5 4 7 6 3 9 7 6 7 6 4 9 7 6 3 4 3 5 6 10 10 9 10 4 3 2 8 5
Prepare a frequency table for the data below with the width of each class interval as 8 using the exclusive method. Given x= { 57,44,80,75,18,45,14,04,64,72,51,69,34,22,83,79,20,57,28,96,56,50,47,10,34,61,66,80,46,22,10,84,50,47,73,42,33,48,65,10,34,60,53 ,75,90,58,46,39,69}

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2. A psychologist estimates the I.Q of 28 students. The values are as follows: 103, 86, 94, 97, 100, 113, 102, 76, 95, 101, 99, 83, 94, 84, 78, 102, 105, 114, 88, 84, 90, 100, 96, 98, 78, 96, 79. Form a frequency distribution with class intervals of width 5 each.