Question

1. Mary cracked open 30 Easter eggs and found 2 free lemonade tickets. What is the probability that she will get another free lemonade ticket in the next Easter egg?

2. Miss Carmen picked 12 tulips, 16 daffodils, and 8 lilies from her garden. She gave to Lise a flower at random from this bunch of flowers. What is the probability that Lisa got a Lily?

3. One morning, Jack herded fifty sheep up to the hill. Seventeen of the Fifty sheep were black. When he reached the top of the hill, a sheep ran off. What is the odds that the wandering sheep is a black sheep?

Answer 1

Question (1)

Mary racked open 30 Easter eggs and found 2 free lemonade tickets.

So the probability of finding a free lemonade ticket = 2/30 = 1/15

= 0.067

So the Probability that she will get another free lemonade ticket in the next easter egg = 1/15 = 0.067

Question (2)

Miss Carmen picked 12 tulips, 16 daffodils, and 8 lilies from her garden

Number of ways of selecting one flower from all of them = 36_C1 (there are total 36 flowers which is obtained by 12+16+8)

Number of ways of selecting one lily from 8 lillies = 8_C1

So Probability that Lisa will get a lily = 8_C1 / 36_C1

₌ 8 / 36

= 0.2222

Question (3)

Total Number of Sheep = 50

Number of black Sheep = 17

So the odds that the wandering sheep is a black sheep is 17/ 50

= 0.34