Question

A die has six faces numbered from 1 to 6. It is rolled and number on the top face is noted. When this is treated as a random trial.
a) What are the possible outcomes?
b) Are they equally likely? Why?
c) Find the probability of a composite number turning up on the top face.​

Answer 1

a)Possible outcomes:1,2,3,4,5,6

b)Yes they are equally likely as no number is repeated

c)probability of a composite number turning up on the top face:2/6

Here 4,6 are the composite numbers

Answer 2

The six possible outcomes are as follows :

a ) { 1 , 2 , 3 , 4 , 5 , 6 }

b ) Yes they are equally alike .

It is because each possibility has equal chance of occurring .

c )

There are 2 composite numbers.

4 and 6 are the composites.

Hence probability = 2/6 = 1/3

Answer is 1/3