6. The temperature of an iron block decreases from 85°C to 25°C. If the mass for
the block is 1.2 kg, calculate the heat lost by the block. (Citon = 0.115 cal/g.°C)

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.