Question

The box plots show the average speeds, in miles per hour, for the race cars in two different races. Average Speeds of Cars in Race A 2 box plots. The number line goes from 120 to 170. For Race A, the whiskers range from 120 to 170, and the box ranges from 143 to 165. A line divides the box at 153. For Race B, the whiskers range from 125 to 165, and the box ranges from 140 to 150. A line divides the box at 145. Average Speeds of Cars in Race B One-half of cars travel at which speeds?

Answer 1

Average speed for race A is around 153 and the average speed for race B is around 145.

Step-by-step explanation:

Please see the attached picture for the box plot.

From the boxplot for Race A, we infer:

The range of speed of Race A = max-min = 170 - 120 = 50

The 1st Quantile is ≅ 142

The 2nd Quantile is ≅ 153

The 3rd Quantile is 165

So IQD : 165-142 ≅ 23

 From the boxplot for Race B, we infer:

The range of speed of Race B = max-min = 165 - 125= 40

The 1st Quantile is ≅ 139

The 2nd Quantile is = 145

The 3rd Quantile is 150

So IQD: 150 - 139 ≅ 11

Average speed for race A is around 153 and the average speed for race B is around 145.

Answer 2

Answer:

b

Step-by-step explanation:

i just did it on edge