Fractions
What is a fraction that is equivalent to 1/2?
2/4, 3/6, 4/8, 5/10, 6/12, 7/14, ect.
What is the mode in the data? 4, 6, 4, 5, 9, 6, 4, 1, 4
4
Only interviewing the boys in the class to see the classes favourite sport is an example of sampling bias. True or False?
True
What is the name of angles that are less than 90 degrees?
Acute angles
What is black when it’s clean and white when it’s dirty?
A chalkboard
What is 3/7 + 2/7?
5/7
What is the range in this set of data? 2, 10, 7, 5, 3, 8, 10
8
It is perfectly okay if you collect data that is bias. True or False.
Solve for a. 40 = a x 5
8
What invention lets you look right through a wall?
A window
What is 7/10 in decimal form?
0.7
Ms. Bennett puts everyones name on a piece of paper and puts it in a bag. She chooses who will answer one of her questions by picking a paper with a name from the bag. What type of sampling is this?
Simple Random Sampling
Toys R Us wants to know where their shoppers are traveling from. They only ask customers who spend more than $14. Is this an example of sampling bias? Why or why not?
Yes, this is an example of sampling bias as customers who spent less than $14 are not being represented.
How may faces does a rectangular prism have?
6
What is always in front of you but can’t be seen?
The future
Which fraction is the greatest? 4/8, 1/8, 1/4, 2/8
4/8
Holly wants to know what subjects the teachers at her school enjoy teaching the most. She surveys 4 teachers from each division. What type of sampling is this?
Stratified Random Samping
Holly wants to know what subjects the teachers at her school enjoy teaching the most. She surveys 4 teachers from each division. Is this an example of sampling bias? How do you know?
No, it is not an example of sampling bias. She asked 4 teachers in each division which means each division would be represented equally.
What is 8x7?
What question can you never answer yes to?
"Are you asleep?"
What is 1/6 x 4?
4/6
Toys R Us wants to know where their shoppers are traveling from. They ask every 7th person to provide their postal code at checkout. What type of sampling is this?
Systematic Random Sampling
Provide an example of sampling bias
Solve this problem: 100 - 50 x 3 + 6
156
What must be broken before it can be used?
An egg