Question

involving the green and red 10-sided dice. What is the probability that both dice show an...

involving the green and red 10-sided dice.

What is the probability that both dice show an even number?

What is the probability that the product of the numbers rolled is less than 11?

Homework Answers

Answer #1

(a)

10 - sided dice

Both dice show an even number

Favorable events:
S ={(2,2), (2,4), (2,6), (2,8),(2,10), (4,2), (4,4), (4,6), (4,8), (4,10), (6,2), (6,4), (6,6), (6,8), (6,10), (8,2), (8,4) (8,6), (8,8), (8,10), (10,2), (10,4), (10,6), (10,8), (10,10)} : 25 Nos.

So,

Probability that both dice show an even number = 25/100 = 0.25

So,

Answer is:

0.25

(b)

Product of th numbers rolled is less than 11:

Favorable Events :

S = {(1,1), (1,2), (1,3(, (1,4), (1,5), (1,6), (1,7),(1,8), (1,9), (1,10) : 10 Nos.

        (2,1), (2,2), (2,3), (2,4), (2,5) : 5 Nos.

       (3,1), (3,2), (3,3): 3 Nos.

       (4,1), (4,2): 2 Nos.

       (5,1), (5,2): 2 Nos.

       (6,1): 1 No.

         (7,1): 1 No.

         (8,1): 1 No.

         (9,1): 1 No.

          (10,1): 1 No. }

Thus, Number of favorable events = 27

So,

Probabilty that the product of the numbers rolled is less than 11 = 27/100 = 0.27

So,

Answer is:

0.27

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