NDA2012MathematicsProbabilityActual
What is the most probably number of successes in 10 trials with probability of success 2 / 3 ?
Options
- A10
- B7
- C5
- D4
Correct answer
B. 7
Step-by-step solution
aligned & p(r)= ^n C _r p^r q^ n-r & n=10, p=2 / 3, q=1 / 3 aligned