Question

Probability Question

Answer 1

For Example 10 part b:

There are two ways he cycles to school :
1) he oversleeps then cycles
2)he doesn't oversleep and then cycles

P (oversleep then cycle) = 0.4 multiplied by 0.7
P (not oversleeping then cycle) = 0.6 multiplied my 0.1
add the answers
=      (0.4*0.7) + (0.6*0.1)

Hope that helps and answers the question :)

Answer 2

 (0.4*0.7) + (0.6*0.1) thatt abwer