1. The heights of 15 boys of a shoot are given \( cm \) : \( 148,128,146,143,152,139,140,142,149,154,132,157,165,139,142 \) Arrange the above data in an ascending order and find: a. The height of the tallest boy. b. The height of the shortest boy. c. The mean height.
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The average height of 30 boys was calculated to be 150 cm. it was detected later that one value of 165 cm was wrongly copied as 135 cm for the computa
Correct Answer - 151 cm
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The mean of 150 items was found to be 60. Later on, it was discoverved that the values of two items were misread as 52 and 8 instead of 152 and 88 res
Correct Answer - 61.2
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The heights (in cm) of 9 students of a class are 148,144,152,155,160,147,150,149,145. find the median height.
Correct Answer - 147 cm
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The numbers 52,53,54,54,(2x+1),55,55,56,57 have been arranged in an ascending order and their median is 55. find the value of x and hence of the given
Correct Answer - x=27, mode =55
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Median of the data 5,8, 9, x, 11, 13 is 9.5 (given that data is arraned in ascending order) then x is
Correct option is (C) 10 Number of observations is n = 6 (even) \(\therefore\) Median = Average of \(\frac n2th\) observation and \((\frac n2+1)^{th}\) observation \(=\frac{9+x}2\) \(\therefore\) \(\frac{9+x}2\) = 9.5 \((\because\) Median = 9.5 (given)) \(\Rightarrow\) 9+x = 9.5 \(\times\) 2 = 19 \(\Rightarrow\) x = 19 -...
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Median of the data 5,8, 9, x, 11, 13 is 9.5 (given that data is arraned in ascending order) then x is
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If the mean height of 3 boys is 142 cm. and the mean height of another 7 students is 145 cm., then the mean height of 10 students.
Correct option is (B) 144.1 cm The mean height of 10 boys \(=\frac{3\times142+7\times145}{10}\) \(=\frac{426+1015}{10}\) \(=\frac{1441}{10}\) = 144.1 cm
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If the mean height of 3 boys is 142 cm. and the mean height of another 7 students is 145 cm., then the mean height of 10 students.
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1. The heights of 15 boys of a shoot are given \( cm \) : \( 148,128,146,143,152,139,140,142,149,154,132,157,165,139,142 \) Arrange the above data in an ascending order and find: a. The height of the tallest boy. b. The height of the shortest boy. c. The mean height.
Please send me answer of the question
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