Find the probability of correctly answering the first 5 questions on a multiple choice test if random guesses are made and each question has 4 possible answers.

A) $\frac { 4 } { 5 }$

B) $\frac { 1 } { 1024 }$

C) $\frac { 1 } { 625 }$

D) $\frac { 5 } { 4 }$

Question

Find the probability of correctly answering the first 5 questions on a multiple choice test if random guesses are made and each question has 4 possible answers.

A) $\frac { 4 } { 5 }$

B) $\frac { 1 } { 1024 }$

C) $\frac { 1 } { 625 }$

D) $\frac { 5 } { 4 }$

Quizplus · Accepted Answer

Each question has a 1/4 chance of being answered correctly. The probability of answering all 5 questions correctly is $(1/4)^5 = 1/1024$.

Find the Probability of Correctly Answering the First 5 Questions 45\frac { 4 } { 5 }54​

Find the Probability of Correctly Answering the First 5 Questions $\frac { 4 } { 5 }$