# 772 Opener

## Quiz by Michelle Bagley

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11 questions
• Q1
What is the mode of this data? 200, 200, 300, 400, 400, 900
200 and 400
There isn't a mode.
350
400
30s
• Q2
What is the mean of this data? 200, 200, 300, 400, 400, 900
400
200 and 400
350
There is no mean.
45s
• Q3
What is the median of this data? 200, 200, 300, 400, 400, 900
There is no median.
200 and 400
400
350
45s
• Q4
50 is what percent of 360?
13.89%
180
720%
7.2%
45s
• Q5
If 12/17 of the girls in Mrs. Anderson's 7th grade class watch Vampire Diaries, predict how many of the 7th grade girls at Mountain Ridge watch Vampire Diaries.
352
353
120
176
45s
• Q6
If 20% of the students in my 8th grade ALL Math class come to Math Club, is this a good sample to predict the participation for the rest of the school?
Yes, it would be proportional to the student population.
No, the sample is too small to predict.
4
No, it is a biased sample.
45s
• Q7
What would be the best way to take an unbiased survey about drama classes at MRJH?
Take a sample survey of MRJH students in the cafeteria at lunch.
Take a sample survey of people attending a drama production.
Make every student take the survey before they can register for school.
Take a sample survey of students in drama classes.
45s
• Q8
What is the slope of this line: y = -x.
-1
0
undefined
-x
45s
• Q9
What is the slope of this line: y = 8
undefined
0
8
1
45s
• Q10
What is the slope of this line: x = 8
undefined
1
0
8
45s
• Q11
45s

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