Question

there are 200 students in the 7th grade class. of these students, 12% play volleyball and 15% play baseball. four students play on both teams. what is the probality that a student plays either volleyball or baseball?!?!?!!?1 help will medal and fan

Answer 1

well, if we count them, we get a double count for those that play on both

Answer 2

so 24 play volleyball?

Answer 3

and 30 play baasketball?

Answer 4

n(V or B) = (a+b) + (b+c), but we have counted b twice, so we have to subtract it out

Answer 5

baseball*

Answer 6

so this seems fair to me
\[\frac{200(.12)+200(.15)-4}{200}\]

Answer 7

i got 8

Answer 8

8 is not a valid probability, should be between 1 and 0

Answer 9

.35?

Answer 10

.12 + .15 - 4/200

.12 + .15 - 1/50

im getting .25

Answer 11

ooohhhhh..

Answer 12

u babe thanks i get it

Answer 13

good luck :)