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3. a) A box contains 10 balls, of which 3 are blue, 2 are red, and 5 are green. Three balls are randomly selected with r
Posted: Thu Jan 13, 2022 5:48 am
by answerhappygod
- 3 A A Box Contains 10 Balls Of Which 3 Are Blue 2 Are Red And 5 Are Green Three Balls Are Randomly Selected With R 1 (89.2 KiB) Viewed 67 times
3. a) A box contains 10 balls, of which 3 are blue, 2 are red, and 5 are green. Three balls are randomly selected with replacement. i. Construct a probability distribution for the number of blue ball being selected. (4 marks) ii. Find the probability that at least 2 of the selected balls are blue. (1 marks) b) The average number of rainy days in Pulau Langkawi for a one-month period is 6. The numbers of rainy days in different months are mutually independent. Find the probability that fewer than four rainy days occur in a month period. (3 marks) a c) Students enrolling for a Statistics course are taking a multiple-choice quiz. There are four possible choices for each of the
questions in which only one is correct. A student forgot to study prior to the day of the quiz, hence relies on pure guess- work to answer each
question, independent of how he answers any previous
questions. Find the probability that the student answers three
questions wrong in a row before he finally answers a
question correctly. (2 marks)