Inferences unit

Which survey question is biased? 

• During which month do you prefer to go on vacation?
• Do  you think the teacher should come back to teach even after his terrible year?
• What is your favorite color?
• What is your favorite subject?

Tags

CCSS.RL.11-12.6

Which survey question is biased? 

• During which month do you prefer to go on vacation?
• Do  you think the teacher should come back to teach even after his terrible year?
• What is your favorite color?
• What is your favorite subject?

Lucy wants to find out the number of frogs in a pond near her house.  She catches 54 of them, puts a leg band on each frog, and put them back in the pond.  The next week she catches 70 frogs.  Of those 70 frogs 13 have a leg band.  Based on this information, what is a reasonable estimate of the number of frogs in the pond?

• 208
• 632
• 291
• 111

Ted has the following scores on exams in his French class: 77, 96, 58, 63, 96, 87. Should Ted use the mean, median, mode, or range of the exam scores if he wants to try to convince his parents of his success in the French class? 

• mean
• median
• mode
• range

  Find the outlier of the set of data: 7, 8, 11, 7, 6, 15, 31, 11 

• 7
• 15
• 11
• 31

Tags

CCSS.6.SP.B.5

Aaron was interested in learning about how much time students at his school spend playing sports each week.  To find out more about this, he lets a computer pick names, from the student body using no particular rule.  to  estimate how many hours per week they spent playing sports.  What kind of sample is this?

• simple random sample
• convenience
• systematic
• voluntary

Suppose Aaron asked all the students in his mathematics class to estimate how many hours per week they spend playing sports.  What kind of sample is this

• simple random sample
• convenience
• systematic
• stratified

There are 1232 students enrolled at Aaron's school.  The principal's office has an alphabetical list of all the students' names.  Suppose Aaron asked every 20th student on the list to estimate the number of hours he or she spends playing sports each week.  What kind of sample is this

• simple random sample
• convenience
• systematic
• stratified

Which set of data has a larger range?
set a : 27, 45, 63, 99, 21, 17, 100
set b: 34, 17, 54, 93, 12, 18, 22

• set a
• set b

40, 41, 41, 44, 44, 37, 38, 42, 41, 39, 44, 39, 37, 44, 42   Find the mode

• 10
• 37
• 41
• 44