Important Questions for Class 10 Maths Chapter 14 Statistics

Important Questions for Class 10 Maths Chapter 14 Statistics

Statistics Class 10 Important Questions Very Short Answer (1 Mark)

 

  1. If the mean of the frequency distribution is 7.5 and ∑ f x=120+3k,  ∑ F = 30, then k is equal to :
    (a) 40
    (b) 35
    (c) 50
    (d) 45

 

  1. The mean of x, x+1, x+2, x+3, x+4, x+5 and x+6 is
    (a) x
    (b) x+4
    (c) 3
    (d) x+3

 

  1. The mean of first 5 prime numbers is :
    (a) 5.5
    (b) 5.6
    (c) 5.7
    (d) 5

 

  1. The mode 12, 14, 11, 16, 15, 14, 11, 13, 14 is
    (a) 14
    (b) 11
    (c) 15
    (d) 16

 

  1. The following frequency distribution shows the weights of new born babies in a hospital:
Weight of new born baby (in kg) 1.4 – 1.8 1.8 – 2.2 2.2 – 2.6 2.6 – 3.0
No. of Babies 3 15 6 1

Then the median weight is :
(a) 2 kg
(b) 3 kg
(c) 2.05 kg
(d) 2.5 kg

 

  1. If the median of the observation 9, 13, 15, 20, x+2, x+4, 33, 45, 56, 61 arranged in ascending order is 24. Find the value of x.

 

  1. If the difference of mode and median of a data is 36, then the difference of median and mean is :
    (a) 18
    (b) 24
    (c) 8
    (d) 36