Question

Im so confused at part b) is not 0.98 and i dont know what is it

Answer 1

0.294

Explanation:

The number of possible outcomes for 2 consecutive days is 2 (Friday, Saturday and Saturday,Sunday).

Prob( Friday, Saturday has rain) = 0.70*0.70* 0.30) = 0.147 (No rain Sunday)

Prob( Saturday/Sunday has rain) = 0.30*0.70*0.7) = 0.147 (No rain Friday)

Required Probability = 2*0.147

= 0.294.