Posted by nabiha on .
The probability that Richard beats John at badminto is 0.7. The probability that Richard beats John at sqaush is 0.6. These events are independant. Calculate the probabilty that, in a week when they play one game of badminton and sqaush:
a) Richard wins both games
b) Richard wins one game and loses the other.

maths 
PsyDAG,
a) .7 * .6 = ?
b) Which one does he lose?
Loses badminton = .3 * .6 = ?
Loses squash = .7 * .4 = ?
For "eitheror" probability among the two above, add the newly found probabilities.