OCR S1 2012 January — Question 3

Exam BoardOCR
ModuleS1 (Statistics 1)
Year2012
SessionJanuary
TopicBinomial Distribution
TypeSum or combination of independent binomial values
3 A random variable \(X\) has the distribution \(\mathrm { B } ( 13,0.12 )\).
  1. Find \(\mathrm { P } ( X < 2 )\). Two independent values of \(X\) are found.
  2. Find the probability that exactly one of these values is equal to 2 .
This paper (9 questions)
View full paper
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9