# Question: Fifty percent of the customers who go to Sears Auto

Fifty percent of the customers who go to Sears Auto Center for tires buy four tires and 30% buy two tires. Moreover, 18% buy fewer than two tires, with 5% buying none.

a. What is the probability that a customer buys three tires?

b. Construct a cumulative probability distribution for the number of tires bought.

a. What is the probability that a customer buys three tires?

b. Construct a cumulative probability distribution for the number of tires bought.

## Answer to relevant Questions

Calculate the mean, the variance, and the standard deviation of the following discrete probabilitydistribution.You are considering buying insurance for your new laptop computer, which you have recently bought for $1,500. The insurance premium for three years is $80. Over the three-year period there is an 8% chance that your laptop ...Let the probability of success on a Bernoulli trial be 0.30. In five Bernoulli trials, what is the probability that there will be (a) 4 failures, (b) more than the expected number of failures?Sikhism, a religion founded in the 15th century in India, is going through turmoil due to a rapid decline in the number of Sikh youths, who wear turbans (Washington Post, March 29,2009). The tedious task of combing and tying ...Let the mean success rate of a Poisson process be 8 successes per hour.a. Find the expected number of successes in a half-hour period.b. Find the probability of at least 2 successes in a given half-hour period.c. Find the ...Post your question