Question

The temperatures (in degrees Fahrenheit) in Long Island recorded by the weather bureau over a week were 42, 49, 53, 55, 50, 47, and 52. Which measure should the weather bureau use to calculate how far apart the upper and lower quartiles of the week's daily temperatures were?

A
mode
B.
mean absolute deviation
C.
interquartile range
D.
mean

Answer 1

The interquartile range is the difference between the first (lower) quartile and third (upper) quartile. The first quartile is the value that is greater than 25% of the values in the data, and the third quartile is the value that is greater than 75% of the values in the data. The Interquartile range (IQR) is found by subtracting the lower quartile value from the upper quartile value. Hope this helps.