as an introduction to probability, a student is asked to roll a fair, six - sided number cube seven times…

as an introduction to probability, a student is asked to roll a fair, six - sided number cube seven times. the results of those seven rolls are shown below. 1, 4, 4, 4, 4, 6, 5 what is the iqr of the data? 1 1.53 2 5

Answer

Explanation:

Step1: Arrange data in ascending order

1, 4, 4, 4, 4, 5, 6

Step2: Find the median (Q2)

Since there are 7 data - points, the median is the 4th value. So Q2 = 4.

Step3: Find the lower half of data

The lower half is 1, 4, 4. The median of the lower half (Q1) is 4.

Step4: Find the upper half of data

The upper half is 4, 5, 6. The median of the upper half (Q3) is 5.

Step5: Calculate the IQR

IQR=Q3 - Q1. So IQR = 5 - 4=1.