Abag contains 4 red marbles and 5 blue marbles. what is the probability of randomly selecting a blue marble and then, without replacing it, selecting a red marble?
a. 5/18
b.40/81
c.16/81
d.1/6

Write a recursive sequence that represents the sequence defined by the following explicit formula:

Write two subtraction equations that are equivalent to 5 + 12 = 17.

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3