While the overall redemption rate of Sudzo coupons was only 35%, the rate was 45% among middle income families, 25% among low income families, and only 5% among high income families.If she conducts this promotion, Schultz would, as in past promotions, mail 60% of all coupons to middle income families, 30% to low income families, and the remaining 10% to high income families. Assume the household is picked at random from the list of households to which Sudzo coupons are mailed

a.If the household has a low income, what is the probability that the Sudzo coupon will be redeemed?

b.What is the probability that the randomly selected household is both middle-income and does not redeem the coupon?