Answer:
(A) 40
Explanation:
The given data set is:
56 32 48 52 51 53 48 38 35 42 40 46 54 50
Firstly, arrange the given data in ascending order, we get
32, 35, 38, 40, 42, 46, 48, 48, 50, 51, 52, 53, 54, 56.
The median is equal to 48
Since, the given data set consists of 14 data points, thus the lower quartile will consists of 7 data points, these are:
32,35,38,40,42,46,48
The lower half of a data set is the set of all values that are to the left of the median value when the data has been put into increasing order.
Therefore, lower quartile=40