Question

11. Gopi buys a fish from a shop for his aquarium. The
shopkeeper takes out one fish at random from a
tank containing 5 male fish and female fish (see
Fig. 15.4). What is the probability that the fish taken
out is a male fish?​

Answer 1

Given:

• The total number of fish in the tank = 5 + 8 = 13
• Total number of male fish = 5

To Find:

The probability that the fish taken  out is a male fish.

Solution:

According to the question,

Given, The total number of fish in the tank = 5 + 8 = 13

Total number of male fish = 5

$\implies P(E)=\frac{Number \: of \: favourable \: outcome }{Total \: number \: of \: outcomes}$

Therefore,

P (male fish) $:\implies$ $\frac{5}{3} = \boxed{\underline{\underline{0.38}}}$

Hence, the probability that the fish taken  out is a male fish is 0.38.

Answer 2

: Required Answer

➝ Given

TOTAL NO OF FISH = 13

MALE FISH IS = 5

➝ Find

probability that the fish taken out is a male fish?

➝ Solution

➝ The total number of fish in the tank = 5+8 = 13

➢Total number of male fish = 5

➝ P(E) = (Number of favourable outcomes/ Total number of outcomes)

P (male fish) = 5/13 = 0.38