Multiple Choice Please select the best answer and click subm

Multiple Choice: Please select the best answer and click \"submit.\" Which of the following best describes the change in the median when 1213 is included in the data set below? 34. 75. 26.81.65. 38. 49

Solution

34,75,26,81,65,38,49

sort in increasing order

26,34,38,49,65,75,81

total numbers are 7 so median will lie at (7+1)/2=4th position

which means median is 49

now if we 1213 in list then sorted list will be

26,34,38,49,65,75,81,1213

and median will be average of 4th and 5th element

that is median=(49+65)/2=57

which is 8 more than old median value 49

hence A is correct