A multiple choice test is given with 5 choices for each of 25 questions. suppose the test is answered by guessing. A) what is the random variable x defined to be?
B) what is the probability of gifted at least 10 questions correct?
C) what is the expected number of questions answered correctly by guessing
D) what is the standard deviation of this distribution?

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.

yes the data was not prsented

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road

it is c!