Annie and her friends start a doubles club. the numbers below show information about all the members of the club. boys girls juniors 6 8 seniors 16 12 express the probability that annie chooses a girl or a junior. use the formula: p(aub)= p(a)+p(b)- p(anb)

Step-by-step explanation:

The given table :

                 Boys         Girls

Juniors       6               8

Seniors      16              12

Let G denote the event of choosing girl and J denote the event of choosing Junior.

Number of girls : 8+12=20

Number of Juniors : 6+8=14

Members that are girl and junior = 8

Total students : 6+8+16+12=42

The probability of choosing girl is given by :-

The probability of choosing junior is given by :-

The probability of choosing a girl and junior is given by ;-

Now, the probability choosing a girl or a junior is given by :-

Hence, the  probability that Annie chooses a girl or a junior=

ye

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.