Question

A die is rolled once. what is the probability of rolling: (a) 3,7 (b) an even number (c) a prime number ?​

Answer 1

Answer:

a. probability of 3 is 1/6 and 7 is 0

b. 1/2

c. 1/2

Answer 2

Answer:

a) The probability of getting 3 when a die is rolled = $\frac{1}{6}$

   The probability of getting 7 when a die is rolled = $\frac{1}{6}$

b) The probability of getting an even number = $\frac{3}{6}=\frac{1}{2}$

c) The probability of getting a prime number = $\frac{3}{6}=\frac{1}{2}$

Step-by-step explanation:

a) The probability of getting 3 when a die is rolled = $\frac{1}{6}$

   The probability of getting 7 when a die is rolled = $\frac{1}{6}$

b) The number of even numbers in a die = 3

    Therefore the probability of getting an even number = $\frac{3}{6}=\frac{1}{2}$

c)The number of prime numbers in a die = 3

    Therefore the probability of getting a prime number = $\frac{3}{6}=\frac{1}{2}$