Question

Website offers coupon of 15%.

What is the probability that at Aya will be offered a coupon on at least one of the days she visits the website

Answer 1

0.62

Explanation:

P(at least one coupon)

=1−P(no coupon all 6 days)

=1−(0.85^6)

≈1−0.377

≈0.623

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The event is getting at least one coupon, and the complement is getting no coupon, being 0.85 and 0.15 respectively. Simply raise the complement to the power of 6 (one for each day) and subtract from 1.