(1) A student writes a five question multiple-choice quiz. Each question has four possible responses. The student guesses at random for each question. Find the probability that the student has only one correct answer. A. 0.40 B. 0.53 C. 0.25 D. 0.20

(D) 0.20

Step-by-step explanation:

There are 5 questions in the quiz.

Each question has 4 options to pick from

The student guesses at random for each (and every) question.

Find the probability that the student has only 1 correct answer.

- Focusing less on the "4" options and more on the "5" questions in the quiz, the probability that the student has only 1 correct answer out of 5 is

1/5 = 0.20

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb