Simple Probability
Compound Probability
Mean/Median/Mode/Range
Biased/Unbiased Samples
Sample Space
100
If you spin this spinner one time, what is the probability of landing on the number 3?
1/8
100
If you spin this spinner two times, what is the probability of landing on an even number, then an odd number?
16/64 or 1/4
100
The ages of the students in this class are as follows:
15, 15, 16, 17, 17, 18
What is the median age?
16.5
100
You are trying to determine the favorite ice cream flavor of Richards students. You survey 100 students as they enter the school building. Is this a biased or unbiased sample? Explain.
Unbiased - you are choosing randomly from a group that could include anybody in the school.
100
The local deli offers two kinds of bread and three lunch meats. Draw a tree diagram to represent the sandwich choices.
See board.
200
If you spin this spinner one time, what is the probability of landing on an even number?
4/8 or 1/2
200
If you roll a die two times, what is the probability of getting a 1 both times?
1/36
200
The ages of the students in this class are as follows:
15, 15, 16, 17, 17, 18
What is the mode age?
15, 17
200
You want to know the preferred grocery store of Oak Lawn residents. You survey 100 people as they leave the Jewel Osco on 103rd. Is this a biased or unbiased sample?
Biased because you are only asking people who are already shopping at Jewel Osco.
200
Your bank asks you to select a 3-digit pin number. How many pin numbers are possible using digits 0-9?
1000
300
If you roll a six-sided die one time, what is the probability of getting a number greater than 4?
2/6 or 1/3
300
If you spin this spinner twice, what is the probability of getting the number 8 twice?
1/64
300
The ages of the students in this class are as follows:
15, 15, 16, 17, 17, 18
What is the mean age?
16.3
300
You want to know the favorite television show of Richards students. You survey your six classmates in the block. Is this a biased or unbiased sample?
Biased - too small and not representative of the whole school
300
Your bank asks you to make a pin with 3 numeric digits and one letter. How many pins are possible with 3 digits 0-9, followed by a letter?
26000
400
If you roll a six-sided die one time, what is the probability of landing on a multiple of 3?
2/6 or 1/3
400
If you roll a die and spin this spinner, what is the probability of getting a 6 on both the die and the spinner?
1/48
400
The ages of the students in this class are as follows:
15, 15, 16, 17, 17, 18
What is the range of the ages?
3
400
Out of 3,000 people, how many would you expect to say United is their favorite airline?
450 people
400
If you have 9 shirts, 4 pairs of pants and two pairs of shoes, how many outfits can you make?
72
500
If you choose a letter at random from the phrase SUMMER BREAK, what is the probability of choosing a vowel?
4/11
500
If you roll a die and spin this spinner, what is the probability of getting a number greater than 3 on both the die and the spinner?
15/48 or 5/16
500
The table below lists the points scored by each member of the Celtics in their game 7 win yesterday:
Jayson Tatum 19
Al Horford 2
Robert Williams III 10
Marcus Smart 22
Jaylen Brown 17
Malcolm Brogdon 16
Derrick White 9
What was the mean, median, mode and range of the points scored by the team members?
2 9 10 16 17 19 22
Mean: 13.6
Median: 16
Mode: no mode
Range: 20
500
Out of all 15,000 people who use the airport, how many people would you expect to say Southwest is their favorite airline?
5,250 people
500
If a sandwich store has 5 bread options, 6 meat options and 3 cheese options, how many sandwiches are possible?
90