Let x denote the number of canon slr cameras sold during a particular week by a certain store. the pmf of x is

x | 0 1 2 3 4
px(x) | 0.1 0.2 0.3 0.25 0.15

seventy percent of all customers who purchase these cameras also buy an extended warranty. let y denote the number of purchasers during this week who buy an extended warranty.

a) what is p(x= 4, y= 2)?
b) calculatep(x=y).
c) determine the joint pmf ofxandy formula
d) determine the marginal pmf ofyas a table.

What is the value of x in the diagram below?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

How do you find p(a and b) if a and b are independent events for two or more actions, such as tossing a coin twice and finding p(heads and heads)? 2. how do you find p(a or b) if a and b are independent events for one action, such as spinning a four-color spinner once and finding p(red or blue)?