Question

10. A dice is tossed once. What is the probability of getting:
a) A prime number.
b) An even number.
c) A composite number.
d) A number > 4.

Answer 1

Step-by-step explanation:

Total possible outcomes for a single die =6

Composite number is a number which is greater than 1 but not a prime number.

∴ numbers of getting a composite number =2

i.e 4 and 6.

P(A)=Total Number of possible outcomesNumber of favourable outcomes

∴P(A)=62=31

hence option A is correct.

Answer 2

Step-by-step explanation:

a. 2,3,5

b. 2,4,6

c. 4,6

d. 5,6

(a).probability of prime numbers=no.of total outcomes/no.of observations=4/6=0.66

(b). probability of even number=3/6=2

(c). probability of composite number=2/6=0.33

(d). probability of greater than 4=2/6=0.33

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