What is the difference between a discrete and continuous random variable?

A random variable is uniformly distributed between 150 and 200. Find the height of the graphed distribution.  Note:  a + b 2

What is the total area under the standard normal distribution curve?

Use the following discrete probability distribution and find the standard deviation of the discrete random variable X.  X P(X) 1 0.17 2 0.23 3 0.32

Given the contingency table shown here, find P(V). Cell Phone Service Provider County Sprint (S) AT&T (A) Verizon (V) Row Total Macomb (M) 17 25 8 50 Oakland (O) 19 38 13 70 Wayne (W) 24 37 19 80 Col Total 60 100 40 200

If two events are complementary, then we know that

Which of the following are required conditions for the distribution of a discrete random variable?

Find the z-score that corresponds to a cummulative area of 0.4602. 

If we have two events, A and B, what do we call the probability of their intersection?

Given the contingency table shown here, find P( A ∩ M). Major Gender Accounting (A) General Management (G) Economics (E) Row Total Male (M) 210 180 140 530 Female (F) 150 160 160 470 Col Total 360 340 300 1000