g
Gyaan Maths
CBSE · Class 6-10
Back to chapter
Practice Test · Class 10

Statistics

10 questions randomised from the chapter. Type each final answer and submit to see your score.

00:01
0/10 attempted
01
Modal age from data 10,12,15,12,18,12,2010, 12, 15, 12, 18, 12, 20.
02
Find the median of first 99 odd natural numbers.
03
Median: l=20,cf=8,f=10,h=10,n=50l = 20, cf = 8, f = 10, h = 10, n = 50.
04
Mean of 10,20,30,4010, 20, 30, 40 with freq 2,3,4,12, 3, 4, 1.
05
For classes 0−10,10−20,20−30,30−40,40−500-10, 10-20, 20-30, 30-40, 40-50 with freq 5,8,15,10,75, 8, 15, 10, 7: find mean.
06
Median of 12,15,18,22,24,25,2812, 15, 18, 22, 24, 25, 28.
07
Modal class from freq 5,12,20,15,85, 12, 20, 15, 8 (classes size 1010, start 2020).
08
nn observations sum to 210210; mean 10.510.5. Find nn.
09
Intervals for class marks 15,25,3515, 25, 35 (size 1010).
10
Mean =30= 30, Median =32= 32; find mode.
Gyaan Maths — CBSE Class 6-10, built for board-toppers.
v1.1 · Feb 2026