The probability that evan purchases a comic book from the bookstore (event a) is 0.67, and the probability that glen purchases a comic book from the bookstore (event b) is 0.74. the probability that both evan and glen purchase a comic book is 0.2442. given this information, which statement is true?
a. events a and b are independent because p(a|b) ≠ p(a).
b. events a and b are independent because p(a and b) = p(a) × p(b).
c. events a and b are dependent because p(a and b) ≠ p(a) × p(b).
d. events a and b are dependent because p(a|b) = p(a).

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? 1. define a variable for the situation. 2. write an inequality that represents the situation. 3.solve the inequality to find out how many months he needs to keep the website for site a to be less expensive than site b. 4. using words, describe how many months he needs to keep the website for site a to be less expensive than site b.

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? group 1: a 15 b 45 group 2: a 20 b 25

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?