CLASS 7 DATA HANDLING QUIZ1

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What is the arithmetic mean of 1, 2,...., 9 and 10? *

1 point

(a) 5.5

(b) 6

(d) 10

In the class- interval 70-80, 80 is the(a) lower limit(b) upper limit(c) frequency(d) range *

1 point

(a) lower limit

(b) upper limit

(d) range

In a data, 10 numbers are arranged in increasing order. If the 7th entry is increased by 4, by how much does the median increase? *

1 point

(a) Zero

(b) 4

(d) 5

A batsman scored the following number of runs in six innings:35, 30, 45, 65, 39, 20The mean runs scored by him in an inning is *

1 point

(a) 39

(b) 38

(d) 40

The range of the weights (in kg) of a students of a class given below is:49, 60, 47, 50, 47, 59, 58, 45, 53 *

1 point

(a) 10

(b) 15

(d) 2

The mode of the distribution 3,5, 7, 4, 2, 1, 4, 3, 4 is *

1 point

(a) 7

(b) 4

(d) 1

The median of the distribution 2, 3, 4, 7, 5, 1, 6 is *

1 point

(a) 1

(b) 2

(d) 4

Which of the following statements is true? *

1 point

(a) The mode is always one of the numbers in a data

(b) The mean is always one of the numbers in a data

(d) Median < Mode in a data

The marks of some students are as given below:30, 31, 32, 32, 33, 32, 34, 35, 30, 31, 33, 32Find the mode of their marks. *

1 point

(a) 30

(b) 31

(d) 33

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