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Standard VI

Mathematics

Grouped Data

Satish got th...

Question

Satish got the following marks in his weekly class tests out of $50$ :
$48$ , $32$ , $36$ , $42$ , $38$ , $35$ , $39$ , $49$ , $34$ , $14$ , $32$ , $37$ , $31$ What should he expect in the next weekly test out of the following?
(i) between $40 - 50$
(ii) between $30 - 40$

Between

40 - 50

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Between

30 - 40

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Data insufficient

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None of these

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Solution

The correct option is B Between $30 - 40$
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Similar questions

Q. Find the mean of marks obtained by 20 students in a class test (out of 50). 25, 40, 15, 16, 28, 39, 41, 22, 28, 30, 36, 40, 30, 18, 22, 32, 48, 32, 38, 40.

Q. The following are the marks obtained by

42

students in an English examination(out of

50

marks). Draw a histogram and frequency polygon for the data.

29, 45, 23, 40, 31, 11, 48, 1, 30, 24, 25, 29, 25, 32, 31, 22, 9, 49, 19, 13, 32, 39, 25, 3, 27, 41,

12, 13, 2, 44, 7, 43, 7, 43, 15, 35, 40, 3, 12, 48, 49, 18

Q. Construct a frequency distribution table for the data on the weights (in kg) of

20

students of a class using intervals

30 - 35, 35 - 40

ans so on____

40, 38, 33, 48, 60, 53, 31, 46, 34, 36, 49, 41, 55, 49, 65, 42, 44, 47, 38, 39

Question 95(ii)

The weights (in kg) of 30 students of a class are as follows :
39, 38, 36, 38, 40, 42, 43, 44, 33, 33, 31, 45, 46, 38, 37,
31, 30, 39, 41, 41, 46, 36, 35, 34, 39, 43, 32, 37, 29, 26
Prepare a frequency distribution table using one class interval as (30-35), 35 not included.
Which class has the maximum frequency ?

Q. By taking classes

30 - 40, 40 - 50, 50 - 60, . . .

, construct a frequency table for the following data:

65, 34, 74, 49, 52, 35, 71, 55, 61, 40, 56, 38, 52, 56, 52, 33, 60, 35, 49, 37, 53, 50, 44, 30, 62, 50, 47, 45, 47, 50, 63, 61, 54, 58, 47, 64, 37, 38, 44, 42, 47, 55, 70, 33, 75, 49, 47, 30, 60, 69

Also, construct a combined histogram and frequency polygon for the distribution.

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Satish got the following marks in his weekly class tests out of 50:48, 32, 36, 42, 38, 35, 39, 49, 34, 14, 32, 37, 31 What should he expect in the next weekly test out of the following?(i) between 40−50(ii) between 30−40

The correct option is B Between 30−40undefined

Satish got the following marks in his weekly class tests out of $50$ :
$48$ , $32$ , $36$ , $42$ , $38$ , $35$ , $39$ , $49$ , $34$ , $14$ , $32$ , $37$ , $31$ What should he expect in the next weekly test out of the following?
(i) between $40 - 50$
(ii) between $30 - 40$

The correct option is B Between $30 - 40$
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