Question

MPLES
2. A bag contains a red ball, a blue ball
and an yellow ball, all the balls being
of the same size. Manasa takes out a
ball from the bag without looking into
it. What is the probability that she
takes a (i) yellow ball? (ii) red ball?
(iii) blue ball? (AS) (Page No.309)
sol Manasa takes out a ball from the bao​

Answer 1

3 balls are there....

i)yellow ball = 1/3

ii)red ball = 1/3

iii)blue ball = 1/3

Answer 2

SoluTion :-

$\sf {Total\ no.\ of\ balls = 3}\\\\\\\\\sf {No.\ of\ yellow\ balls=1}\\\\\\\sf {(i)\ Probability\ of\ yellow\ ball = \frac{No.\ of\ yellow\ balls}{Total\ no.\ of\ balls } }\\\\\\\sf {=\frac{1}{3} }\\\\\\\\\sf {No.\ of\ red\ balls=1 }\\\\\\\sf {(ii)\ Probability\ of\ red\ ball = \frac{No.\ of\ red\ balls}{Total\ no.\ of\ balls } }\\\\\\\sf {=\frac{1}{3}}\\\\\\\\\sf {No.\ of\ blue\ balls=1 }\\\\\\\sf {(ii)\ Probability\ of\ blue\ ball = \frac{No.\ of\ blue\ balls}{Total\ no.\ of\ balls } }$

$\sf {=\frac{1}{3}}$

What is probability ?

Probability is a numerical description of how likely an event is to occur or how likely it is that a proposition is true. Probability is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility and 1 indicates certainty.