Question

6. Refer to the Car Color data from the Project. Using the Histogram supplied below,

a. What specific type of Histogram is this chart?

b. What is the use of the cumulative percent line?

c. What are the top three car colors?

d. If I were to choose a car at random from those driven by , what is the probability it would be Red, Blue, or Gray, based upon this chart?

Car Colors

red	13
blue	12
gray	11
tan	5
maroon	3
dkgray	2
orange	2
dk blue	1
dk green	1
light brown	1
gold beige	1
pink	1
mn blue	1
slate	1

Answer 1

a) The specific type of histogram in this chart is bargraph.

b) the cummulative percent line tells us that the percent of total number of cars accumulated by each color.

   The cummulative percent line also used to check the accuracy that sum of probability is equal to one or not.

c) The top three car colors are red, blue and grey. since the frequency of these three colours are highest.

d) If i choose a car at random from these car the probability that it would be red ,blue or grey is :

   Total number of red, buue or grey cars/ Total number of cars

   = 36/55 = 0.655