Q1: The frequency distribution of weights (in kg) of 40 persons is given below.40 - 4545 - 50144Weights (in kg)FrequencyWhat is the lower limit of the fourth class interval?(a)(b)(c)30-35635-4013What is the class size of each class interval (i)?Which class interval has the highest frequency?50-553

It is given that the frequency distribution of weights ( in kg ) of 40 persons. The given frequency…

Answered: (a) (b) (c) What is the lower limit 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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9:4 (b). The numbers 3, 2, 5.8, 7.9 and 4.5, have frequencies x, (x + 2), (x + 3) and (x + 6) respectively. If the arithmetic mean is 4.876, find the value of x.
Class Intervals : Frequency: : Find A.M. for following data (Open end interval) Below 20 20-30 10 6 30-40 24 40-50 28 50-60 14 60-70 5 Above 70 3
The histogram to the right represents the weights (in pounds) of members of a certain high-school math team. What is the class width? What are the approximate lower and upper class limits of the first class? ... What is the class width? The class width is (Simplify your answer.) What are the approximate lower and upper class limits of the first class? The approximate lower class limit is The approximate upper class limit is (Simplify your answers.) Frequency IL 0- 105 125 145 165 185 205 225 245 Weight (lbs) Q G
43
A data set with whole numbers has a low value of 20 and a high value of 110. Find the class width for a frequency table with seven classes. Find the class limits for a frequency table with seven classes. Lower class limit - Upper class limit First class Second class Third class Fourth class Fifth class Sixth class Seventh class
The accompanying relative frequency ogive represents the composite score on a standardized test for a high school graduating class. Complete parts (a) through (d) below. Click the icon to view the ogive. (a) What is the class width? Ogive of Composite Scores 6 (Type a whole number.) (b) Approximately 10% of students had a composite score below what level? 1- 18 (Type a whole number.) 0.9- (c) What percentage of students had a composite score less than 36? 0.8- 80 % 0.7- (Type a whole number.) 0.6- (d) Five percent of students had a composite score above what level? 0.5- (Type a whole number.) 0.4- 0.3- 0.2- 0.1- 6 12 18 24 30 36 42 48 54 Composite Score Cumulative Relative Frequency
Suppose an interval has frequency f . If the class interval with the lowest value is at the lowest row, then _________ is the sum of frequency f and all frequencies below it. greater than cumulative frequency Relative frequency less than cumulative frequency class mark
Here is a data set: 430 584 450 343 458 737 498 265 665 412 643 466 356 338 644 599 466 577 495 436 456 476 516 503 497 675 421 334 Construct a grouped frequency distribution table (GFDT) for this data set. You want 10 classes with a "nice" class width. Your classes should be labeled using interval notation. Each class contains its lower class limit, and the lower class limits should all be multiples of the class width. In that the data appears to be discrete, use a closed-interval to label each class.
Complete the Table I. Find the class boundaries (lower and upper limit), class mark and class widths for each class. a. 11 – 15 ____________ ____________ ____________ b. 17 – 39 ____________ ____________ ____________ c. 293 – 353 ____________ ____________ ____________ d. 11.8 – 14.7 ____________ ____________ ____________ e. 3.13 – 3.93 ____________ ____________ ____________

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(a) (b) (c) What is the lower limit of the fourth class interval? What is the class size of each class interval (i)? Which class interval has the highest frequency?