70. Find the missing frequency from the following data :30-400-1010-2020-3040-5050-60MarksNo. of students15202010The arithmetic mean is 34 marks.IENUENLIENUELIENUELIENUEUENUIENUENNENEN DI

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Answered: 70. Find the missing frequency from the…

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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3. Calculate simple and weighted arithmetic mean for the following data Designation Monthly salary in Rs Class I officer Class II officer Subordinate staff Clerical staff Lower staff 1500 800 500 250 100 Strength of the cadre 10 20 70 100 150
4. Find the grouped mean Height F 60-65 2 66-71 25 72-77 12 78-83 3
The numbers of students in the 10 schools in a district are given below. (Note that these are already ordered from least to greatest.) 204, 250, 255, 262, 274, 311, 369, 381, 389, 415 Send data to calculator Suppose that the number 204 from this list changes to 304. Answer the following. (a) What happens to the mean? It decreases by U O It increases by O It stays the same. (b) What happens to the median? O It decreases by O It increases by O It stays the same.
A math professor is wondering if students today are better or worse than in the past. He has given the same final to this year's class that he gave ten years ago. Compute mean, median, and mode for both classes and write a paragraph summarizing the differences. This Year 35 45 65 75 87 80 69 71 53 90 99 95 70 82 73 93 67 61 57 74 72 77 71 81 83 Ten Years Ago 56 77 75 76 59 74 51 89 55 79 67 77 69 91 68 90 65 79 69 79 87 86 98 91 95
8.Suppose you compare the mean of raw data and the mean of the same raw data grouped into a frequency distribution. These two means will be a. Exactly equal. b. The same as the median. c. The same as the geometric mean. d. Approximately equal.
Compute the geometric mean from the following data : Marks No. of students 0-10 10 10-20 5 20-30 8 30-40 7 40-50 20
find the mean for the following data leaf steam 2 4 9. 3 4 9. 7 1 6 8 2 6 24 6 1 67 N 5
4. The number of watermelons collected daily in an orchard for the past 50 days are as follow: Number of watermelons 120- 125- 130- 135- 140- 145- collected daily 124 144 149 Number of days 1 26 13 2 Find the mean number of watermelons collected in this orchard daily. (answer: i = 137.6)
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70. Find the missing frequency from the following data : 30-40 0-10 10-20 20-30 40-50 50-60 Marks No. of students 15 20 20 10 The arithmetic mean is 34 marks.