Find the lower quartile of the distribution illustrated by the cumulative frequency curve

Find the lower quartile of the distribution illustrated by the cumulative frequency curve
  • A.
    17.5
  • B.
    19.0
  • C.
    27.5
  • D.
    28.0
Correct Answer: Option B
Explanation

Lower quartile,
Q1 = (frac{1}{4})Nth term
= (frac{1}{4}) x 600th term
= 150th term
= 15.5 + 3 + 0.5
= 19

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