Audrey earned a grade of 77% on her multiple-choice history final that had a total of 200 problems. How many problems on the final exam did Audrey get wrong?

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

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i hope this is what you were looking for.

see attached graph

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation: