Ajar contains black and white marbles, which are drawn with replacement. the probability of selecting a black marble is 0.34. what is the probability of selecting one white marble and one black marble

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220