each dot in the following dot plot represents the height of one toddler at mrs. orlandos daycare. find the…

each dot in the following dot plot represents the height of one toddler at mrs. orlandos daycare. find the interquartile range (iqr) of the data in the dot plot. cm

each dot in the following dot plot represents the height of one toddler at mrs. orlandos daycare. find the interquartile range (iqr) of the data in the dot plot. cm

Answer

Explanation:

Step1: Order the data

The ordered data set from the dot - plot is (81,82,83,83,84,84,84,85). There are (n = 8) data points.

Step2: Find the median (Q2)

Since (n = 8) (an even number), the median (Q2=\frac{83 + 84}{2}=83.5).

Step3: Find the lower half and Q1

The lower half of the data is (81,82,83,83). Since there are (n_1 = 4) data points (an even number), (Q1=\frac{82+83}{2}=82.5).

Step4: Find the upper half and Q3

The upper half of the data is (84,84,84,85). Since there are (n_2 = 4) data points (an even number), (Q3=\frac{84 + 84}{2}=84).

Step5: Calculate the IQR

The inter - quartile range (IQR=Q3 - Q1). Substitute (Q1 = 82.5) and (Q3 = 84) into the formula: (IQR=84 - 82.5 = 1.5).

Answer:

(1.5)