WHat is the lower quartile of this sample data?
Solution :
The lower quartile (or first quartile or 25th percentile) is the median of the bottom half of the numbers.
So, to find the lower quartile, we need to place the numbers in value order and find the bottom half.
16 28 43 52 61
So, the bottom half is
16 28
The median of these numbers is 22
Hence, the lower quartile of the data set is 22.
WHat is the lower quartile of this sample data? Sample Size: n-5 First observation (XT) :...
What is the variance of this data set? Sample Size: n-5 First observation (XT) : Гб Second observation (x2) : 28 Third observation (x3) :43 Ëourth Observation (X4) : бг Fifth observation (x5): 52 Sum (2x) 200 Sum of squares (2x2): 9314
Sample Size: n = 5 First observation (x1) : 49 Second observation (x2) : 52 Third observation (x3) : 34 Fourth observation (x4) : 85 Fifth observation (x5) : 43 Sum ( Σx ) : 263 Sum of squares ( Σx2 ) : 15335 What is the lower quartile (Q1) of your sample data?
Sample Size: n = 5 First observation (x1) : 49 Second observation (x2) : 52 Third observation (x3) : 34 Fourth observation (x4) : 85 Fifth observation (x5) : 43 Sum ( Σx ) : 263 Sum of squares ( Σx2 ) : 15335 What is the variance of your sample data?
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