unit-12 statistics

• 9 and 10

• 9.2 and 9.9

• 9.4 and 10

• 9 and 11

• 9 and 10

• 9.2 and 9.9

• 9.4 and 10

• 9 and 11

• 5.4

• 5.268

• 5.6

• 5.5

• 5.4

• 5.268

• 6.1696

• 6.5

40 candidates from D1 appeared for a test.The marks scored by the candidates are as (out of 60) given here.

52,42,40,36,12, 28,15,37,35,22

39,50,54,39,21, 34,46,31,10,09

13,24,29,31,49, 58,40,44,37,28,

13,16,29,36,39, 41,47,55,52,09

which class has the highest frequency?

• (11-20)

• (21-30)

• (31-40)

• (41-50)

40 candidates from D1 appeared for a test. The marks scorde by the candidates are as (out of 60) given here.

52,42,40,36,12, 28,15,37,35,22,

39,50,54,39,21, 34,46,31,10,09,

13,24,31,49,58, 40,44,37,28,13

,16,29,36,39, 41,55,52,09,47

which is the lowest frequency?

• (1-10)

• (11-20)

• (21-30)

• (31-40)

The attendance in a class for 10-days is 45,53,39,50,48,55,47,52,49,46.find the range of the data.

• 39

• 10

• 55

• 16

The consumption of milk by a family for 11 days is as given ,find variance of the data.

6 8 8 10 10 10 10 10 12 12 14

• 48

• 4.8

• 11

• 10

• 15

• 25

• 4

• 35

The variance of some data is 9 then the standard deviation will be:

• 1.5

• 3

• 4

• 8