Question

Explain how quartiles are calculated for a set with 81 data values.

O Q1, Q2, and Q3 are the averages of the left, middle, and right.
Q2 is the average of the middle. Q1 and Q3 are exactly in the middle of the left and right sides of Q2
O Q2 is exactly in the middle. Q1 and Q3 are averages of the left and right sides of Q2.
O Q1, Q2, and Q3 are exactly in the middle of the left, middle, and right.

Answer 1

Quartiles for a set of 81 data values are calculated by dividing the data into four equal parts: Q1 is the average of the left side, Q2 is the median, and Q3 is the average of the right side.

Step-by-step explanation:

The calculation of quartiles for a set with 81 data values involves dividing the data into four equal parts. To find Q1, the lower quartile, you would take the average of the values on the left side of the middle value. Q2, the median, is calculated by finding the middle value. Q3, the upper quartile, is found by taking the average of the values on the right side of the middle value.

Learn more about Calculating quartiles for a dataset