# Question: Compute the mean and variance of the following discrete probability

Compute the mean and variance of the following discrete probability distribution.

x P(x)

0 ....... .2

1 ....... .4

2 ....... .3

3 ....... .1

x P(x)

0 ....... .2

1 ....... .4

2 ....... .3

3 ....... .1

**View Solution:**## Answer to relevant Questions

Compute the mean and variance of the following discrete probability distribution.x P(x)2 ...... .58 ...... .310 ...... .2Belk Department Store is having a special sale this weekend. Customers charging purchases of more than $50 to their Belk credit card will be given a special Belk Lottery card. The customer will scratch off the card, which ...The U.S. Postal Service reports 95% of first-class mail within the same city is delivered within 2 days of the time of mailing. Six letters are randomly sent to different locations.a. What is the probability that all six ...A manufacturer of window frames knows from long experience that 5% of the production will have some type of minor defect that will require an adjustment. What is the probability that in a sample of 20 window frames:a. None ...Automobiles arrive at the Elkhart exit of the Indiana Toll Road at the rate of two per minute. The distribution of arrivals approximates a Poisson distribution.a. What is the probability that no automobiles arrive in a ...Post your question