a)
To find: A set of data where the median is less than the mean of the data distribution.
The set of data where the median is less than the mean is shown below
1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 10, 15.
Given:
The collected set of data is 1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 10, 15.
Concept used:
The mean and median are measures of central tendency, the mean is nothing but the average of all values and the median is the middle value of the data distribution in ascending order.
The mean is calculated using the formula
Calculation:
The mean of the set of data is calculated as shown below
There are a total of 15 data points given in the data distribution arranging them in ascending order, the median of the data distribution is the middle value which is at the 8th position.
With reference to the given set of data values, the data point at the 8th position is 5. The mean of the data distribution is 5.6 and the median is 5.
Conclusion:
The collected data set 1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 10, 15 satisfy the condition that the median is less than the mean.
b)
To find: A set of data where the mean is less than the median of the data distribution.
The set of data where the mean is less than the median is shown below
1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 7.
Given:
The collected set of data is 1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 7.
Concept used:
The mean and median are measures of central tendency, the mean is nothing but the average of all values and the median is the middle value of the data distribution in ascending order.
The mean is calculated using the formula
Calculation:
The mean of the set of data is calculated as shown below
There are a total of 15 data points given in the data distribution arranging them in ascending order, the median of the data distribution is the middle value which is at the 8th position.
With reference to the given set of data values, the data point at the 8th position is 5. The mean of the data distribution is 4.87 and the median is 5.
Conclusion:
The collected data set 1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 7 satisfy the condition that the mean is less than the median.
Chapter 10 Solutions
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