1. A researcher collected data from car shoppers about their favorite car color. He asked 250 people about their favorite vehicle color and the survey revealed the following: 32% said blue, 24% said white, 20% said red, 18% said black, and 4% said silver.

(a) What percent preferred a color other than blue, white, red, black, or silver?
(3 pts: 2 for answer, 1 for showing work)

(b) How many more people said their favorite color is white compared to those who said black? (3 pts – 2 for answer, 1 for showing work)

(c) Draw and label a circle graph showing the responses to the survey. Be sure to include a section for “Other”. Be sure your circle graph is labeled, and the percentages are in proportion to the whole. (2 pts – 1 for correctly showing percentages and 1 for labeling)

A)2%  B)15 more   *DID NOT DO C*

Step-by-step explanation:

A)

32+24+20+18+4   (add up the percentages)

=98%

100-98   (find what percentage of people did NOT like the given colors)

=2%

B)

24% of 250  (we want people, not percent)

=60

18% of 250 (Again, people, not percent)

=45

60-45    (we want the difference between the two=subtract)

=15  (15 more people preferred white, rather than black)

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation:

the data of the detroit pistons in numerical order from least to greatest is 0.30, 0.37, 0.55, 0.62, 0.69, 0.72, 0.73, 0.75, 0.77, 0.78, 0.80, 0.81, 0.81, 0.83, 0.84, 0.89

the data of the miami heat in numerical order from least to greatest is 0.50, 0.50, 0.56, 0.57, 0.67, 0.72, 0.72, 0.72, 0.75, 0.75, 0.76, 0.81, 0.82, 0.90, 1.00, 1.00

the detroit pistons median : 1.52

the miami heat median: 1.47

the iqr of this data is 0.05