What is the interquartile range of the box-and-whisker plot shown?

a. 42

b. 74

c. 15

d. 27

42

Step-by-step explanation:

A Boxplot is composed of Outliers, which display low minimums and high maximums, and the Interquartile Range represented by a square composed of Q1 (quartile 1), Q3 (quartile 3) and Median. Each quartile represents 25% of numbers. In this case, we can identify quartiles in the plot shown, being:

Q1 = 30

Q2 (median) =  45

Q3 = 72

The interquartile range is a measure of where the “middle fifty” is in a data set. The equation to find it is:

Then,

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.