Questions:

which display is more useful for approximating the minimum distance?

which display can be used to find that there were 23 vehicles at nam’s used car lot?

See explanation

Step-by-step explanation:

Which display is more useful for approximating the minimum distance?

More useful is box-and-whisker plot (second display) because there you can exactly see that the minimum distance is 10 km (left point at the plot).

Which display can be used to find that there were 23 vehicles at Nam’s Used Car Lot?

More useful is first display, because you see the following information:

Distance           Number of vehicles

0 - 50                              3

50 - 100                          4

100 - 150                         5

150 - 200                        6

200 - 250                       3

250 - 300                       2

Total number of vehicles = 3 + 4 + 5 + 6 + 3 + 2 = 23

step-by-step explanation:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since     2010 0     1     2     3       4       5

profits made in 1000's   39       84     111     120   111     84

we find that profit gradually increases form 2010 to 2013 upto 120,   then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

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