Sheila either walks or cycles to school The probability thats she walks to school is 0.65
If she walks the probability she is late is 0.4
If she cycles, the probability she is late is 0.1
Work out the probability that on any day Sheila will not be late to school

0.705

Hello!

Sheila either walks or cycles to school the probability that she walks to school is 0.705

Step-by-step explanation:

Probability she walks and is  not late = 0.65 * 0.60 = 0.39.

Probability she cycles and is not late =  0.35*0.9 = 0.315

Therefore P(not late) =  0.39 + 0.315 = 0.705

Hope this helped you!