I need your help! Question is in the picture.

See explanation

Step-by-step explanation:

For the first one, 3.25/2.5=1.3. For the second one, 5.98/4.6=1.3. For the third one, 6.76/5.2=1.3 Since the ratio is constant for all three (1.3), x and y are proportional. Hope this helps!

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

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.