Which of the following is not a random experiment?
(a) Tossing a coin (b) Rolling a dice
(c) Choosing a card from a deck of 52 cards
(d) Thowing a stone from a roof of a building
The range of the data 30, 61, 55, 56, 60, 20, 26, 46, 28, 56 is
(a) 26 (b) 30 (c) 41 (d) 61
In a pie chart, the total angle at the centre of the circle is
(a) 180° (b) 360° (c) 270° (d) 90°
A geometric representation showing the relationship between a whole
and its parts is a
(a) Pie chart (b) Histogram (c) Bar graph (d) Pictograph
The height of a rectangle in a histogram shows the
(a) Width of the class (b) Upper limit of the class
(c) Lower limit of the class (d) Frequency of the class
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.
+91 94284 01196 (WhatsApp only)
C-15, Suvidhapark Society, Amitnagar circle, Karelibaug, Vadodara (390018)
© Copyright 2025. Doubtora. All Rights Reserved
