Age (in years) of 6 children of two groups are recorded as below: Age (in Years) Group A Group B 7 7 7 9 9 11 8 12 10 12 10 12
- (a)Find the mode and range for each group.
- (b)Find the range and mode if the two groups are combined together. 15-04-2018 Measures of central tendency are used to describe the middle of a data set. Mean, median, and mode are measures of central tendency. Description Mean To find the mean (average), add the values in the data set. Then divide by the number of values in the set. Median The middle value or the mean of the two middle values, in an ordered (ascending or descending) set of data. Mode The value(s) that occur most frequently. Range The difference between the least and the greatest values in a data set.
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(a) Find the mode and range for each group.
(b) Find the range and mode if the two groups are combined together. 15-04-2018 Measures of central tendency are used to describe the middle of a data set. Mean, median, and mode are measures of central tendency. Description Mean To find the mean (average), add the values in the data set. Then divide by the number of values in the set. Median The middle value or the mean of the two middle values, in an ordered (ascending or descending) set of data. Mode The value(s) that occur most frequently. Range The difference between the least and the greatest values in a data set.