ClassFrequency:Q3) For the following data80-84350-54 55-59 60-64 65-69 70-74 75-79371016129* :a) The arithmetic mean is65 O67.5 O6969.5none of all above O

We have given the following data to find the mean.

Answered: :Q3) For the following data 50-54 55-59…

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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Data was collected for 161 randomly selected 10 minute intervals. For each ten-minute interval, the number of people entering the atrium of a large mall were recorded. The data is summarized in the table below. Number of Guests Frequency 220 – 239 5 240 – 259 35 260 – 279 80 280 – 299 27 300 – 319 14 What is the class width for this GFDT?Class width =
Example 8. Ten coins were tossed together and the number of the resulting from them were observed. The operation was performed 1050 times and the frequencies thus obtained for different number of tails (x) are shown in the following table. Calculate the arithmetic mean by the short- cut method. 2 3 4 5 6 7 8. 10 f: 2 43 133 207 260 213 120 54 1 CS Scanned with CamScanner
33 33 | 19 49 33 34 46 34 39 31 55 30 34 27 35 | 29 31 |32 24 36 29 57 50 39 45 53 44 50 45 36 23 42 50 36 38 40 26 43 | 35 29 | 22 36 34 53 30 26 26 | 22 30 31 a. Organize the user's ages in a frequency table of six classes with sSuitable class width (class interval). (You have to construct a table with classes, frequency, cumulative frequency, relative frequency, and percent relative frequency). b. Represent the users ages by suitable graphs (minimum 2 graphs).
The weekly salaries (in dollars) for 10 employees of a small business are glven below. (Note that these are already ordered from least to greatest.) 674, 697, 699, 738, 785, 807, 809, 905, 938, 968 Suppose that the $968 salary changes to $1188. Answer the following. (a) What happens to the mean? Oit decreases by $ It increases by S O It stays the same. (b) What happens to the median? It decreases by $ O It increases by $ O It stays the same.
b) In the frequency distribution of 60 students given below, the number of students corresponding to marks classes 36 – 54 and 72 – 90 are missing. However, the median is known to be 43. Marks 0–18 18–36 36–54 54–72 72–90 90–108 No. of students 8 15 f1 8 f2 5 Find the missing frequencies f1 and f2 and then compute mean, and mode
The Mean of the following student marks equals to 25 mark Frequency 0-10 20-20 8 20-30 30-40 40-50 3 Total 25 Select one: True False 3.
Table below summaries the age group of the 300 respondents. Table 1 Age Group Number of Respondents 18-25 62 26-34 60 35-44 55 45-54 70 55 - 75 53 (b) Use the data given in Table 1 to: Page 4 O calculate the mean age of the respondents (1) identify the modal interval and interpret your answer (1) identify the median interval
Group A5- 5 86- 1 3 77- 0 1 1 2 5 6 7 8 8 88- 1 2 3 3 3 4 4 5 6 89- 0 2 710- 0 0 Key: 5|5 represents 55 Group B5- 76- 4 87- 1 2 2 5 68- 0 2 4 5 5 5 7 79- 1 3 4 5 6 7 7 8 8 9 910- 0 0 0Key: 5|7 represents 57 1. Calculate the mean, median, range, and interquartile range for each data set. 2. Using the appropriate measures, compare the center and variability of the two groups of students. Explain your reasoning based on the shapes of the distributions.
Calculate the arifhmetic mean of the following data : 90-80 80-70 70–60 | 60–50 50-40 | 40-30 30-20 10 X : 110-100 100-90 20-10 10-0 4 8 16 16 24 18 14 4
The following is the data set for specific research regarding a certain product 15 19 14 20 13 23 16 25 17 12 20 11 23 10 14 11 25 12 11 15 8 17 8 18 16 19 17 19 24 What is the range of the data set? How many class intervals should be constructed? How many elements does the class width has? What is the frequency of the class interval with the highest value? What is the >cf of the 3rd to the highest class interval?

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:Q3) For the following data 50-54 55-59 60-64 65-69 70-74 75-79 80-84 7 10 16 12 9 3 * :a) The arithmetic mean is 65 O 67.5 O 69 O 69.5 O Class Frequency 3