Question

In the data set below, what is the lower quartile?

89 99 95 87 78.4 96

Answer 1

The lower quartile is 87.

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Answer 2

put the numbers in order...
78.4 , 87, 89, 95, 96, 99

Q1 (lower quartile) = 87
Q2 (median) = (89 + 95) / 2 = 184/2 = 92
Q3 (upper quartile) = 96