Show:
7.SP.1 Random Sampling &
7.SP.2 Drawing Inferences
7.SP.3 Difference Between Centers & 7.SP.4 Comparing Two Populations
7.SP.5 Probability Between 0 and 1 & 7.SP.6 Experimental Probability
7.SP.7 Developing Probability Models
7.SP.8 Compound Events
100
Mrs. Nalder sends out an e-mail to students on her e-mail roster and offers them a full-size candy bar to participate in a short study. Mrs. Nalder accepts the first 20 students to respond to her e-mail. Will Mrs. Nalder's study be biased or unbiased? Explain your thinking.
What is biased, because ... 1.) 20 students is not a large enough sample 2.) Only students on her e-mail roster got the notification. 3.) Mrs. Nalder is paying her students to participate, so only students who really care about getting the candy bar will respond.
100
The RBIs (Runs Batted In) for 6 players from the 2014 Ford Thunderbirds and Keithley Kolts are shown. Use the data to answer the following question. Ford Thunderbirds: 18, 9, 25, 44, 32, 20 Keithley Kolts: 5, 21, 28, 40, 21, 19 Find the range of each set of data (for each team)?
What is ... Ford Thunderbirds' range is 35. Keithley Kolts' range is 35.
100
Given the following outcome, determine if it is impossible, less likely, equally likely, more likely, or certain. Rolling an odd number on a standard die.
What is equally likely?
100
I flip a coin 60 times. I flipped heads 25 times and tails 35 times. 1.) What is the experimental probability of flipping heads? 2.) What is the theoretical probability of flipping heads?
What is ... 1.) 5/12 2.) 1/2
100
Determine if the pair of compound events is INDEPENDENT or DEPENDENT. Choosing a blue M&M from a bag, eating it, then choosing another blue M&M.
What is DEPENDENT?
200
This sample is BIASED or UNBIASED. Explain your choice. Asking Ford 7th graders about their favorite flavor of ice cream by choosing names from a box containing the names of all of Ford's 7th grade students.
What is unbiased, because every 7th grade student has an equal chance of being selected.
200
The RBIs (Runs Batted In) for 6 players from the 2014 Ford Thunderbirds and Keithley Kolts are shown. Use the data to answer the following question. Ford Thunderbirds: 18, 9, 25, 44, 32, 20 Keithley Kolts: 5, 21, 28, 40, 21, 19 Find the mean, median, and mode for each team's data.
What is ... Ford: mean = 24.67; median = 22.5; mode = no mode Keithley: mean = 22.33; median = 24.5; mode = 21
200
Given the following outcome, determine if it is impossible, less likely, equally likely, more likely, or certain. On a spinner that is three-fourths blue and one-fourth red, spinning and landing on blue.
What is more likely?
200
Given a spinner with six equal sections numbered 1 - 6, find the simple probabilities of each event. Write your answers as fractions and percents. P(odd) = __________
What is 1/2 or 50%?
200
Rolling a standard die then spinning a spinner with four equal sections numbered 1 through 4.
What is INDEPENDENT?
300
Is this sample BIASED or UNBIASED? Explain your choice. Asking people at a horror film about their favorite movie genre (category).
What is biased, because people at a horror film probably like horror movies.
300
The RBIs (Runs Batted In) for 6 players from the 2014 Ford Thunderbirds and Keithley Kolts are shown. Use the data to answer the following question. Ford Thunderbirds: 18, 9, 25, 44, 32, 20 Keithley Kolts: 5, 21, 28, 40, 23, 19 Find the UQ (Upper Quartile) and LQ (Lower Quartile) for each team's data.
What is ... Ford: UQ = 32; LQ = 18 Keithley: UQ = 21; LQ = 19
300
Given the following outcome, determine if it is impossible, less likely, equally likely, more likely, or certain. Then state the probability as a number. Picking a Queen from a standard deck of cards.
What is less likely? ; 1/13
300
Given a spinner with six equal sections numbered 1 - 6, find the simple probabilities of each event. Write your answers as fractions and percents. Round to the nearest hundredth. P(5) = __________
What is 1/6 or 16.67%?
300
In a bag of money, there are 8 $1 bills, 6 $5 bills, 4 $10 bills, and 2 $20 bills. Find the probability of the following outcome. Write your answer as a fraction and percent. P($20 then $5 bill) = __________
What is 3/100 or 3%?
400
Macy's sends a customer satisfaction survey to a randomly selected sample of their Macy's Rewards customers. Is this survey likely to be representative of all Macy's customers?
What is the sample is not representative of all customers, because they only surveyed rewards customers who are probably satisfied with Macy's.
400
The RBIs (Runs Batted In) for 6 players from the 2014 Ford Thunderbirds and Keithley Kolts are shown. Use the data to answer the following question. Ford Thunderbirds: 18, 9, 25, 44, 32, 20 Keithley Kolts: 5, 21, 28, 40, 23, 19 Find the IQR (Interquartile Range) and MAD (mean absolute deviation) for each team's data.
What is ... Ford: IQR = 14; MAD = 9 Keithley: IQR = 2; MAD = 7.78
400
Given the following outcome, determine if it is impossible, less likely, equally likely, more likely, or certain. Then state the probability as a number. Mrs. Nalder going to Rio in 2012 to compete in gymnastics at the Olympic Games.
What is IMPOSSIBLE?!! ; 0
400
Given a spinner with six equal sections numbered 1 - 6, find the simple probabilities of each event. Write your answers as fractions and percents. P(multiple of 2) = __________
What is 1/2 or 50%?
400
In a bag of money, there are 8 $1 bills, 6 $5 bills, 4 $10 bills, and 2 $20 bills. Find the probability of the following outcome. Write your answer as a fraction and percent. P($1 or $10) = __________
What is 3/5 or 60%?
500
In April of 2013, Arbitron/Edison did a study on the Average Number of Facebook Friends, by Age Group. Given the following results, what inferences can you make about a person's age and the average number of Facebook friends he or she has? 12+: 303 35-44: 209 12-17: 506 45-54: 183 18-24: 510 55-64: 113 25-34: 328 65+: 115
What is ... 1) On average, people between the ages of 18-24 have the most Facebook friends. 2.) On average, people between the ages of 55-64 have the least amount of Facebook friends. 3.) The number of Facebook friends a person has drops dramatically when a person reaches the age of 35. 4.) The average number of Facebook friends is very close for the age groups of 12-17 and 18-24. The same is true for the age groups 55-64 and 65+.
500
The RBIs (Runs Batted In) for 6 players from the 2014 Ford Thunderbirds and Keithley Kolts are shown. Use the data to answer the following question. Ford Thunderbirds: 18, 9, 25, 44, 32, 20 Keithley Kolts: 5, 21, 28, 40, 23, 19 Which team do you think has the better RBI average? Write a few sentences using your data to explain how you know.
What is ... 1.) Ford has the better RBI average, because they have the higher "straight average" or mean of 24.67 compared to Keithley's mean of 22.33. or 2.) Keithley has the better RBI average, because their median of 24.5 is higher than Ford's median of 22.5. Keithley also has less deviation in their data, because they have a lower IQR of 2 versus Ford's IQR of 14, and they have a lower MAD of 7.78 compared to Ford's MAD of 9. 3.) Keithley also has a mode of 21, whereas Ford has no mode. Ford and Keithley both have a range of 35.
500
Given the following outcome, determine if it is impossible, less likely, equally likely, more likely, or certain. Then state the probability as a number. Ford students taking the SBAC next year
What is CERTAIN?!! ; 1
500
Given a spinner with six equal sections numbered 1 - 6, find the simple probabilities of each event. Write your answers as fractions and percents. Round to the nearest hundredth. P(composite number) = __________
What is 1/3 or 33.33%
500
Use a tree diagram or list to show the sample space and total outcomes for the following compound events. Then answer the probability questions. Write your answers as a fraction and percent. Flipping a coin and rolling a die Total Outcomes = __________ P(Tails, 4) = __________ P(Heads, Odd) = __________
What is ... Total Outcomes = 12 P(Tails, 4) = 1/12 or 8.33% P(Heads, Odd) = 1/4 or 25%