A Recent survey of local cell phone retailers showed that of all cell phones sol
ID: 3178503 • Letter: A
Question
A Recent survey of local cell phone retailers showed that of all cell phones sold Last month. 64% had a camera. 28% a musk player and 22% had both. the probability that a cell phone sold last month had a camera or a music player is 70 22 08 92 30 A recent survey of local cell phone retailers showed that of all cell phones sold Last month, 64% had a camera. 28% had a musk player and 22% had both. the probability that a cell phone sold Last month did not have either a camera or a music player is 32) 70 22 92 30 08 the option to buy extended warranties is commonplace with most electronics purchases. But does the type of pure chad affect a consumer's willingness to pay extra for an extended warrants-' Data for 420 consumers who purchased big screen TVs and laptop computers from a leading electronics retailer are summarized in the table Which of the following statement is true? the decision to purchase an extended warrants and type of electrons (big screen TV or laptop computer) purchased are independent. the decision to purchase an extended warrants and type of electronics (big TV or laptop computer) purchased are not independent. the decision to purchase an extended warrants and type of electronics (big screen TV or laptop computer) purchased are disjoint events the decision to purchase an extended warranty and type of electronics (big screen TV or laptop computer) purchased are mutually exclusive. the decision to purchase an extended warrants and type of electronics (big screen TV or laptop computer) purchased are related As accounts manager in your company, you classify 75% of your customers as good credit' and the rest as "risky credit" depending on their credit rating Customers in the risky* category allow their accounts to go overdue 50% of the time on average, whereas These in the 'good category allow thru accounts to become overdue only 10% of the time. What percentage of overdue accounts are held by customers in the "risky credit" category? 34) 93.75% 20% 12.5% 62.5%Explanation / Answer
31)
Here we have
P(camera) = 0.64
P(music player) = 0.28
P(camera and music player) = 0.22
So
P(camera or music player) = P(camera) + P(music player) - P(camera and music player) = 0.64+0.28- 0.22 = 0.7
Option A is correct.