Question

There are 6 girls and 7 boys in a class. A team of 10 players is to be selected from the class. What is the probability that a randomly chosen team has 3 or 4 girls?

Answer 1

Can i get a medal : P

Answer 2

use the probability formula :)

Answer 3

awww : P fines u solve it

Answer 4

nvm she left :P

Answer 5

These ate the answer choices

0.44

0.51

0.62

0.85

Answer 6

Help?

Answer 7

@phi

Answer 8

@Here_to_Help15 Can you help me?

Answer 9

I will give a medal

Answer 10

the first step is figure out how many teams can be formed. you have 13 people and you need to pick 10
13 choose 10 is the number of teams

Answer 11

okay, then what? @phi

Answer 12

now we need to figure out how many teams have either 3 girls or 4 girls.
then we divide that number by the total number from the first step to get the probability

Answer 13

How do we do that? @phi

Answer 14

if we have 3 girls on the team that means we have 7 boys (all of them) to get to 10 total

we have 6 choose 3 ways of picking 3 girls times 7 choose 7 of picking the boys

6C3 * 7C7

for 4 girls, we need 6 boys
we have 6C4 * 7C6

Answer 15

add up those 2 expressions
what do you get?

Answer 16

.437

Answer 17

@phi thank you

Answer 18

yes

Answer 19

it rounds to 0.44