Niwot High School

1. a. Expand ( 3 4 + 1 4 ) 5 b. In New Zealand in 1946 there were two different coins of value two shellings. These were ‘normal’ kiwis and ‘flat back’ kiwis, in the ration 3:1. From a very large batch of 1946 two shelling coins, five were selected at random. Find the probability that: i. … ................
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