English

The Difference Between the Upper and the Lower Class Limits is Called - Mathematics

Advertisements
Advertisements

Question

The difference between the upper and the lower class limits is called

Options

  •  mid-points

  •  class size

  • frequency

  • mean

MCQ

Solution

The difference between the upper and the lower class limits is called the class size.

shaalaa.com
  Is there an error in this question or solution?
Chapter 22: Tabular Representation of Statistical Data - Exercise 22.3 [Page 26]

APPEARS IN

RD Sharma Mathematics [English] Class 9
Chapter 22 Tabular Representation of Statistical Data
Exercise 22.3 | Q 3 | Page 26

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

The distance (in km) of 40 engineers from their residence to their place of work were found as follows:-

5 3 10 20 25 11 13 7 12 31
19 10 12 17 18 11 32 17 16 2
7 9 7 8 3 5 12 15 18 3
12 14 2 9 6 15 15 7 6 12

Construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5 (5 not included). What main features do you observe from this tabular representation?


The relative humidity (in %) of a certain city for a month of 30 days was as follows:-

98.1 98.6 99.2 90.3 86.5 95.3 92.9 96.3 94.2 95.1
89.2 92.3 97.1 93.5 92.7 95.1 97.2 93.3 95.2 97.3
96.2 92.1 84.9 90.2 95.7 98.3 97.3 96.1 92.1 89

(i) Construct a grouped frequency distribution table with classes

84 - 86, 86 - 88

(ii) Which month or season do you think this data is about?

(iii) What is the range of this data?


The heights of 50 students, measured to the nearest centimeters, have been found to be as follows:-

161 150 154 165 168 161 154 162 150 151
162 164 171 165 158 154 156 172 160 170
153 159 161 170 162 165 166 168 165 164
154 152 153 156 158 162 160 161 173 166
161 159 162 167 168 159 158 153 154 159

(i) Represent the data given above by a grouped frequency distribution table, taking the class intervals as 160 - 165, 165 - 170, etc.

(ii) What can you conclude bout their heights from the table?


Following data gives the number of children in 40 families:
1,2,6,5,1,5, 1,3,2,6,2,3,4,2,0,0,4,4,3,2,2,0,0,1,2,2,4,3, 2,1,0,5,1,2,4,3,4,1,6,2,2.
Represent it in the form of a frequency distribution.


The monthly wages of 30 workers in a factory are given below:
83.0, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808,
812, 840, 885, 835, 836, 878, 840, 868, 890, 806, 840, 890.
Represent the data in the form of a frequency distribution with class size 10.


Three coins were tossed 30 times. Each time the number of head occurring was noted down
as follows:
0        1        2        2        1        2        3        1       3        0
1        3        1        1        2        2        0        1       2        1
3        0        0        1        1        2        3        2       2        0


The number of books in different shelves of a library are as follows:
30, 32, 28, 24, 20, 25, 38, 37, 40, 45, 16, 20
19, 24, 27, 30, 32, 34, 35, 42, 27, 28, 19, 34,
38, 39, 42, 29, 24, 27, 22, 29, 31, 19, 27, 25
28, 23, 24, 32, 34, 18, 27, 25, 37, 31, 24, 23,
43, 32, 28, 31, 24, 23, 26, 36, 32, 29, 28, 21.
Prepare a cumulative frequency distribution table using 45-49 as the last class interval.


The difference between the highest and lowest values of the observations is called


The mid-value of a class interval is 42. If the class size is 10, then the upper and lower limits of the class are:


The width of each of nine classes in a frequency distribution is 2.5 and the lower class boundary of the lowest class 10.6. Then the upper class boundary of the highest class is


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×