Explanation Given: The data set is 9 9 10 11 12 15 Formula used: The formula for mean is by, x ¯ = ∑ j = 1 n x j n x ¯ = x 1 + x 2 + ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ + x n n Here, n is the total number of observation and ∑ j = 1 n x j is the sum of raw data. The formula for median is given by, If n is even, Median = ( n + 1 2 ) t h observation+ ( n 2 ) t h observation 2 If n is odd, Median = [ ( n + 1 2 ) t h ] observation Mode, The observation which has the highest frequency is the mode of given data. Calculation: Consider the given set of data, 9 9 10 11 12 15 Substitute the values from raw data to the formula of mean, To determine (b) To find: The mean, median and mode for given set of data 9 9 10 11 12 102 To determine (c) The answers in part (a) and (b) are same or different.

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Chapter 4.2, Problem 5E

To determine

(a)

To find:

The mean, median and mode for given set of data

9 9 10 11 12 15

To determine

(b)

To find:

The mean, median and mode for given set of data

9 9 10 11 12 102

To determine

(c)

The answers in part (a) and (b) are same or different.

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Chapter 4.2, Problem 4E

Chapter 4.2, Problem 6E

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(a) To find: The mean, median and mode for given set of data 9 9 10 11 12 15

Solution Summary: The author explains how to find the mean, median, and mode of a given set of data.

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(a) To find: The mean, median and mode for given set of data 9 9 10 11 12 15

(b) To find: The mean, median and mode for given set of data 9 9 10 11 12 102

(c) The answers in part (a) and (b) are same or different.

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Chapter 4 Solutions

(a)

To find:

The mean, median and mode for given set of data

9 9 10 11 12 15

(b)

To find:

The mean, median and mode for given set of data

9 9 10 11 12 102

(c)

The answers in part (a) and (b) are same or different.