Relative Frequency Graphs
Random Outcomes
Counting
Tree Diagrams
Expected Value
100
Is this a relative frequency graph?
No! It is telling you the number of freshman, sophomores, juniors, and seniors. Not their relative frequencies.
100
True or false, the experimental probability will approach (get closer to) the theoretical probability of an event as the number of trials increases.
True
100
There are 22 people in this class. How many ways can we have top two scoring students on this probability test?
462
100
Say I was playing CLUE and I rolled the two dice, what is the probability of me rolling two fives?
1/36 or .028
100
What two values do you multiply when finding expected value?
The value of each outcome by the probability of the outcome
200
If 20 percent of my students are from Sunderland, when I create a relative frequency pie graph (circle graph), how many degrees should I make the Sunderland sector?
72 degrees
200
Finish the sentence. Two events are equally likely if...
The probability of each event is equal.
200
Mr. Deane has 8 tessellation posters hanging on the side wall above the whiteboard. How many different ways could he have hung these?
40320
200
If I flip a coin 3 times, what is the probability I get HTT?
1/8
200
Say each number value represents winning $ value. What is the expected value of this spinner?
$2.50
300
Mr. Deane put more jolly ranchers in his mug. He has 5 green apple, 7 watermelon, 4 cherry, 8 grape, and 6 blue raspberry. What percentage of the mug is made up of cherry jolly ranchers?
13.3%
300
Suppose 250 people have applied for 15 job openings at a chain of restaurants. Assuming all applicants are equally qualified, what is the probability a randomly selected applicant will get a job?
15/250 or .06
300
There are 15 people on the basketball team. How many different ways can I choose a starting five?
3003
300
What should the probabilities of each final outcome in a tree diagram add up to?
1
300
If Ben's free throw percentage is 60%. What is the expected value of him shooting two free throws?
1.2 points
400
What is the chance that a person chosen at random has a favorite vegetable of either carrots or tomatoes?
50%
400
Say I am flipping a coin and I get heads three times in a row. What is the probability of me getting heads again on the fourth flip?
1/2 or .5
400
Decide whether the following are examples of permutations or combinations.
a. Baseball batting lineup
b. Selecting three side dishes for dinner
c. The steps you take when baking
d. Students going on a field trip
a. Permutation
b. Combination
a. Permutation
b. Combination
400
What does P(Make2|Make1) mean? Write it out in words.
Probability of making the second shot GIVEN you made the first shot.
400
Give me one situation in which computing the expected value might be helpful to you
Predicting outcomes...
500
True or false. The degree of each sector of a pie graph is the probability of the event.
False! The degree divided by the whole (360) is the probability!
500
The circle graph shows the results of a survey taken for household pets. Based on the data, what is the probability that a randomly selected student owns a hamster?
5/34 or .147
500
Suppose you want to make an arrangement of the letters in the word "SMILE" to use as a computer password. How many choices to you have?
120
500
Given this tree diagram, what is the probability of being cured?
7/10 or .7
500
Fill in the blank. Expected value is the ________ value.
Average!