CAIE S1 2005 June — Question 3

Exam BoardCAIE
ModuleS1 (Statistics 1)
Year2005
SessionJune
TopicBinomial Distribution
TypeProbability distribution table

3 A fair dice has four faces. One face is coloured pink, one is coloured orange, one is coloured green and one is coloured black. Five such dice are thrown and the number that fall on a green face are counted. The random variable \(X\) is the number of dice that fall on a green face.
  1. Show that the probability of 4 dice landing on a green face is 0.0146 , correct to 4 decimal places.
  2. Draw up a table for the probability distribution of \(X\), giving your answers correct to 4 decimal places.