Question

(i) Find the probability of obtaining a '4' when the die is rolled.
(ii) Find the probability of obtaining a '2' or a '5' when the die is rolled.

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Answer 1

Observe the dot plot then put the values and get answers

• SAMPLE SPACE=|S|=2^20=2^2(2^10)=4(1024)=4096

So

#1

When 4 is rolled

• |E|=5

Probability

• 4/4096=1/1024

#2

• |E|=7

Probability

• 7/4096