Sampling
Mean,Median,Mode,and Range
Box/Line Plots
Experimental Probability
Theoretical Probability
100
Identify the population and sample.
Juan surveys 50 adults at a local swimming pool during the summer to determine the favorite month of adults in his city.
Population: Adults in his city
Sample: 50 adults at a local swimming pool
100
What is the mode?
10
100
As part of a stuffed animal drive for the local children's hospital, the students at McClure Elementary School record how many stuffed animals they have collected.
How many students have at least 2 stuffed animals?
8 students
100
Fernando is tossing bean bags at a target. He hit the target on 6 out of his last 15 tries. What is the likelihood that Fernando's next toss will be a hit?
Impossible, Unlikely, As Likely As Not, Likely, Certain
Unlikely
100
Dominic wants to play a balloon dart game at the county fair. He can play Game 1 or Game 2. If he pops a blue balloon with a dart, he wins a prize. Which game should Dominic play if he wants a better chance of winning a prize? Assume that Dominic gets one throw, and it will hit a balloon in either game.
You must be able to support your choice.
Game 1
200
Rick sent an e-mail to everyone planning to attend the Boone family reunion and gave them the chance to vote on the reunion location. 2 of them took the time to e-mail back with their votes.
Is this sample of the people planning to attend the reunion likely to be representative?
No
200
What is the mean?
5
200
Mitchell is on his school's track team. He recorded his times in the 100-yard dash at each track meet last year.
What was Mitchell's median time in the 100-yard dash?
22 seconds
200
At Downtown Pizza, 5 of the last 8 pizzas sold had pepperoni. What is the experimental probability that the next pizza sold will have pepperoni?
Write your answer as a fraction, decimal, and percent
5/8
0.625 or 0.63
62.5% or 63%
200
Eric’s coach said he could spin a spinner with 4 equal sections labeled 1–4, or roll a number cube labeled 1–6. If Eric gets a 1, he does not have to run a sprint. If Eric does not want to run a sprint, which should he pick? Explain.
The spinner.
300
Whitney tasted 12 desserts from each bakery in her county. Each bakery has an equal number of desserts.
Is this sample of the desserts from the county's bakeries likely to be representative?
Yes
300
A music student is cataloging some songs and noting the length of each. The 7 songs have lengths of:
What is the range?
3 minutes
300
1. 17
2. Minimum: 4 Maximum: 38
3. 34
4. 25
5. 75%
300
The middle school that Carmen and Richard attend has 925 students. The schedule options for first period include only math and English. In order to find out whether students prefer first period math or first period English, Carmen and Richard took a poll of 100 randomly selected students. The results are shown.
Predict the number of students in the whole school who will state that they prefer first period math.
730.75 students
730 or 731 also acceptable
300
Sadie spins the spinner shown 80 times. Predict how many times she will spin a 2 or 3.
40 times
400
A shipment to a warehouse consists of 3,500 MP3 players. The manager chooses a random sample of 50 MP3 players and finds that 3 are defective. How many MP3 players in the shipment are likely to be defective?
210
400
Celine has the following data:
If the median is 6, which number could z be?
10
400
Johnny is training for a bike race. He recorded how far he rode in his first few training sessions.
Which box plot represents the data?
A.
B. 
A
400
A company analyzes the page views of visitors that come to its website. Based on a sample, the company determines that 30% of all visitors click away from the site after viewing only the home page. The company gets an average of 1,173 visitors per week.
Predict how many visitors will leave the website next week after visiting only the home page.
351.9 visitors
351 or 352 also acceptable
400
Pam tossed a coin 50 times and found the probability of getting heads was 45%. Was this a theoretical or experimental probability? Explain.
Experimental Probability
500
Gabby assigned a number to each of the 120 athletes at her school and put the numbers in a box. She randomly chose 25 numbers and found that 10 athletes were female. Use this sample to make an inference about how many athletes at Gabby’s school are male.
72 males
500
40 cars
500
Liam designed a survey to find out how many pets each student in his class had.
Which box plot represents the data?
A. 
B. 
A
500
Shane plays baseball. The chart shows the results of his first 100 times at bat. Predict the number of home runs Shane will hit in his next 460 times at bat.
23 home runs
500
Ezekiel randomly draws a card from the stack shown. Which is more likely: drawing a card that is NOT red or drawing a green card?
Drawing a card that is not red