A type of chocolate bar does contain a prize voucher with probability p, 0 p
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Question:
A type of chocolate bar does contain a prize voucher with probability p, 0 ≤ p ≤ 1. Whether or not a
bar does contain a prize voucher is independent of other bars. A hungry student buys 8 chocolate bars. Let
X denote the number of bars without prize vouchers that she finds and its probability mass function (pmf)
is given below:
(i) What sort of distribution does X have? Write down its pmf form.
(ii) Draw the above pmf where 0 ≤ k > k1 > k2 > k3 > k4 ≤ 1.
(iii) How likely is it that the she finds seven or more bar without prize voucher?
(iv) What is the most likely numbers of vouchers that she finds?
Related Book For
Business Statistics
ISBN: 978-0321925831
3rd edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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