Trigonometry QUIZ



Probability Assignment MBF3C Name:

Be sure to show all your work, and when writing a probability in terms of a fraction, be sure to leave your answer in lowest terms.

1. A coin was tossed 40 times. The experimental probability of turning up tails was [pic].

a) How many times did the coin come up tails?

b) How many times did the coin come up heads?

c) What was the experimental probability of turning up heads? (Give your answer as a fraction, percent and decimal).

2. Two six-sided dice were rolled 30 times. The sum of 8 was rolled six times. Determine the experimental probability of rolling a sum of 8. (Give your answer as a fraction, percent and decimal).

3. One 6-sided die was rolled many times. The results are shown in the graph.

Find the experimental probability for each event:

a) P (1)

b) P (2 or 4)

c) P (8)

d) P (NOT 4)

4. An MNR employee caught and tagged 50 fish in a lake. If 30 were pickerel, 5 were bass and 15 were pike; find the experimental probability of getting:

a) a pickerel

b) a bass

c) a pike (yuck!)

d) NOT a pike

e) catching a bass, releasing it, then catching a pike.

5. A playing card is randomly selected from a standard deck. Write the theoretical probability of each event as a fraction (in lowest terms).

a) a heart

b) a red king

c) an 8

d) a heart or a spade

e) a black face card

f) a red or a black card

6. a) Use a tree diagram to illustrate the theoretical probability of flipping a coin 3 times.

6 continued …. Give the theoretical probability of each event, as a fraction (in lowest terms):

a) Flipping 3 heads

b) Flipping 2 heads and 1 tail

c) Flipping at least 2 tails

7. The school cafeteria offers the following lunch combos:

|Café Combo’s! |(Choose one of the following sides:) |

|Pizza |Fries |

|Hamburger |Salad |

|Chicken Fingers |Soup |

a) How many different lunch combos are possible?

If you randomly select one lunch combo, what is the probability of getting:

b) pizza and salad?

c) a burger with fries or salad

d) chicken fingers with any side

e) NOT pizza and fries

8. In a bag, there are 32 hard candies and 18 chocolates. One treat is removed, the type is recorded and then it is put back into the bag. This is repeated 50 times. The results were as follows: 11 times a chocolate was pulled, and 39 times a hard candy was pulled.

a) What is the experimental probability of drawing a hard candy? (Express your answer as a percent in lowest terms.)

b) What is the theoretical probability of drawing a hard candy? (Express your answer as a percent in lowest terms.)

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