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)

Question

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)

ganeshie8 · Answer

use the given formula

ganeshie8 · Answer

P(girl or junior) = P(girl) + P(junior) - P(girl and junior)

hockeychick23 · Answer

Is the answer 26? thats what i got when i plugged it in

hockeychick23 · Answer

I did P(AB)= P(20)+P(14)-P(8)

ganeshie8 · Answer

probability is a number between 0 and 1

ganeshie8 · Answer

P(girl) = 20/42 = ?

hockeychick23 · Answer

oh ok so i have .47619+.26923- .1538461538= .59157

ganeshie8 · Answer

check P(junior) again

ganeshie8 · Answer

you should be doing :
(20/42) + (14/42) - (8/42)

hockeychick23 · Answer

ok now i got .6190478095