Question

12. Write the formula of first quartile.​

Answer 1

Answer:

The first quartile, or 25th percentile xL (also written as Q1), is the number for which 25% of values in the data set are smaller than xL. The second quartile or 50th percentile, xm (also written as Q2) is also known as the median.

Step-by-step explanation:

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Answer 2

Answer:

Now, to find the quartiles, we use the logic that the first quartile lies halfway between the lowest value and the median; and the third quartile lies halfway between the median and the largest value. First Quartile Q1 = \frac{n + 1}{4}th term.