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Artemon [7]
3 years ago
10

Eight car dealerships reported the number of cars they sold last month. Car Dealership Number of Cars Sold GMC 84 Chevrolet 81 N

issan 92 Toyota 92 Ford 95 Honda 94 Hyundai 80 Acura 72 What is the interquartile range of this set of data?
Mathematics
2 answers:
storchak [24]3 years ago
7 0

Answer:

A

Step-by-step explanation:

fomenos3 years ago
6 0
The interquartile range is 12.5.

We first find the median.  To do this, order the data from least to greatest and find the middle value:
72, 80, 81, 84, 92, 92, 94, 95

There are 8 data values.  The median is between 84 and 92:
(84+92)/2 = 176/2 = 88

The median splits the data into two halves.  The lower quartile is the median of the lower half; this is between 80 and 81:
(80+81)/2 = 161/2 = 80.5

The upper quartile is the median of the upper half; this is between 92 and 94:
(92+94)/2 = 186/2 = 93

The interquartile range is found by subtracting these:
93-80.5 = 12.5
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