EASY
RRB NTPC CBT 1
IMPORTANT
Earn 100

Mean of some numbers is 14.10. If median of these numbers be 9.89, find the mode.

50% studentsanswered this correctly

Important Questions on Statistics

EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 23 - Statistics>Exercise 1>Q 6

Find the range of the observations given below:

52, 47, 111, 33, 86, 97, 109, 39.

HARD
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 23 - Statistics>Exercise 1>Q 7
Find the variance and standard deviation for the following data, 6, 7, 10, 12, 13, 4, 8, 12.
EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 23 - Statistics>Practice Exercise>Q 1
The 10th class had a science test and the marks were as follows: 74, 75, 89, 82, 66, 78.

Find the mean marks of the class.

EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 23 - Statistics>Practice Exercise>Q 2
What is the mean of the marks scored by students in a science exam?

41, 39, 52, 48, 54, 62, 46, 52, 40, 96, 42, 40, 98, 60, 52.

EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 23 - Statistics>Practice Exercise>Q 3
Mean of six observations 30, 68, 72, 53, 87 and x is 60. Find the value of x.
EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 23 - Statistics>Practice Exercise>Q 4
Find the mean of the data set 1.9, 8.4, 3.6, 5.8.
MEDIUM
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 23 - Statistics>Practice Exercise>Q 5
x 75 27 80 10 89
f 15 20 3 m 10

If the mean of the following observation is 56.5, find the value of m.

MEDIUM
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 23 - Statistics>Practice Exercise>Q 6
x 10 20 30 40 50 60 70 80 90
f 3 4 5 7 9 7 6 5 4

Find the mean of the following observations.