Draw a histogram for the frequency distribution table
given in Example 13 and answer the following questions.
(i) Which class interval has the maximum number of
workers?
(ii) How many workers earn Rs. 850 and more?
(iii) How many workers earn less than Rs. 850?
(iv) How many workers earn Rs. 820 or more but less
than Rs. 880?
The weekly wages (in Rs.) of 30 workers in a factory are
830, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820,
860, 832, 833, 855, 845, 804, 808, 812, 840, 885, 835,
835, 836, 878, 840, 868, 890, 806, 840.
Using tally marks, make a frequency distribution table
with class intervals 800 – 810, 810 – 820 and so on.
The number of times a particular observation occurs in the given data is called its __________.
The fourth class interval for a grouped data whose first
and second class intervals are 10 –15 and 15 –20
respectively is __________.
A dice is thrown two times and sum of the numbers
appearing on the dice are noted. The number of possible
outcomes is
(a) 6 (b) 11 (c) 18 (d) 36
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