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Statistics

Long Answer Type

461. Find the mean deviation about median for the following data:
Marks 0-10 10-20 20-30 30-40 40-50 50-60
Number of
Girls 6 8 14 16 4 2

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Short Answer Type

462. Calculate the mean deviation about median age for the age distribution of 100 persons given below:
Age 16-20 21-25 26-30 31-35 36-40 41-45 46-50 51-55
Number 5 6 12 14 26 12 16 9

Since the difference between the lower limit of any class with the upper limit of its preceeding class is 1.
∴ we shall subtract 0.5 from lower limit and adding 0.5 to the upper limit of each class interval to convert the data into continuous frequency distribution.

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Long Answer Type

463. Find the mean deviation about the mean for the following data:
6, 7, 10, 12,13, 4, 8, 12

144 Views

Short Answer Type

464. Find the mean deviation about the mean for the following data:
12, 3, 18, 17, 4, 9, 17, 19, 20, 15, 8, 17, 2, 3, 16, 11, 3, 1, 0, 5

123 Views

465. Find the mean deviation about the mean for the following data:
4, 7, 8, 9, 10, 12, 13, 17

172 Views

466. Find the mean deviation about the mean for the following data: 6.5, 5, 5.25, 5.5, 4.75, 4.5, 6.25, 7.75, 8.50.

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467. Calculate the mean deviation from the mean for the data:
36, 72, 46, 42, 60, 45, 53, 46, 51, 49

Also, find the number of observations lying between

top enclose straight x space minus space straight M. straight D. space left parenthesis top enclose straight x right parenthesis end enclose space and space top enclose straight x space plus space straight M. straight D. space left parenthesis top enclose straight x right parenthesis end enclose.

113 Views

Long Answer Type

468.

Find the mean deviation about the mean for the following data.
$x subscript i$ 10 30 50 70 90
$f subscript i$ 4 24 28 16 8

131 Views

469.

Find the mean deviation about the mean for the following data.
$x subscript i$ 2 5 6 8 10 12
$f subscript i$ 2 8 10 7 8 5

114 Views

470. Find the mean deviation about the mean for the following data:
Height in cms 95-105 105-115 115-125 125-135 135-145 145-155
Number of boys 9 13 26 30 12 10

162 Views