1. Two balls are drawn from a bag containing 5 white and 7 black balls at random. What’sthe probability that they would be of different colours? About the author Mary
Answer: assuming replacement of the first ball P (white ) = 5 /12 P ( black ) = 7 /12 P ( white and black ) = 5 /12 × 7 /12 = 35 /144 P ( black and white ) = 7/ 12 × 5/ 12 = 35 /144 Step-by-step explanation: pls mark on brainlist Reply
Answer:
assuming replacement of the first ball
P
(white
)
=
5
/12
P
(
black
)
=
7
/12
P
(
white and black
)
=
5
/12
×
7
/12
=
35
/144
P
(
black and white
)
=
7/
12
×
5/
12
=
35
/144
Step-by-step explanation:
pls mark on brainlist