3. A company set up a kiosk in the Mall of America for several hours and asked r

Question

3. A company set up a kiosk in the Mall of America for several hours and asked randomly selected people which color cell phone was their favorite, The results follow: White 10 Black20 Lime 25 Orange35 Red 10 a. What is the probability that a person would select orange as their favourite color? b. What is the probability that a person would select orange or lime as their favorte color? 4. A company's managers evaluated their employees into three classes excellent performance, good performance, and poor performance. The following is a frequency distribution of the results Excellent 200 Good Poor 1700 100 What is the probability that a randomly selected employee was rated excellent or good?

Explanation / Answer

3.

P(color)=number of people choosing that color /total people

a) P(orange) =35/(10+20+25+35+10)=35/100=0.35 or 35%

b) P( orange or lime)=(35+25)/100 =0.6 or 60%

4.

P(excellent or good)=(200+1700)/(200+1700+100)=0.95 or 95%

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