Answer:
25
Step-by-step explanation:
1. Find Second Quartile or Q2 is the median of full data set:
16,18,24,26,26,29,35,40,53,67,72,88,88 with 13 numbers in the set it is the middle number.
Q2 = 35
2. Find Lower Quartile or Q1 is the median of lower half of data set and because there is a odd number of values in the original set you don't include the Q2 value in the upper or lower quartile calculation.
16,18,24,26,26,29 with 6 numbers in the set it is the average of the middle two numbers. (24+26)/2
Q1 = 25
