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- 1. Multiple Choice
What's important in finding the median?
Ensuring the data is in order
Ensuring the data is alphabetical
Finding the middle value
Finding the most common data point
- 2. Multiple Choice
For what kind of data can you only find the mode as an average?
Discrete
Continuous
Quantitative
Qualitative
- 3. Multiple Choice
How many classes are there in this table?
51
4
10
2
- 4. Multiple Choice
Which is the 1st class?
140 ≤ h < 150
150 ≤ h < 160
160 ≤ h < 170
170 ≤ h < 180
- 5. Multiple Choice
Which is the modal class?
140 ≤ h < 150
150 ≤ h < 160
160 ≤ h < 170
170 ≤ h < 180
- 6. Multiple Choice
Which is the modal class?
140 ≤ h < 150
150 ≤ h < 160
160 ≤ h < 170
170 ≤ h < 180
- 7. Multiple Choice
What is each class width?
140 – 180
51
6 – 21
10
- 8. Multiple Choice
To estimate the mean, we should use
each class' lower bound
each class' upper bound
each class
each class' middle value
- 9. Multiple Choice
Why can we only estimate the mean for this given data?
There's no need being precise
We don't have the raw data
Mr Chang is lazy
We may have counted the students incorrectly
- 10. Multiple Choice
For this data, how many data points are there?
4 children
51 children
180 cm
140 cm
- 11. Multiple Choice
For the median, the middle child would be:
25th in line
26th in line
160cm tall
the forgotten child
- 12. Multiple Choice
For this data, the total frequency is:
6
7
10
20
- 13. Multiple Choice
For this data, the median would be the:
10th value
11th value
in between the 10th and 11th value
10.5
- 14. Multiple Choice
For this data, the median is
not possible
Between a Budgie and a Hamster
4.5
a mistake
- 15. Multiple Choice
The median for this set of data is:
1
3
5
8
- 16. Multiple Choice
The median of this set is:
7
5
3
1
- 17. Multiple Choice
Estimate the mean height of these 25 trees (using your calculator)
100cm
116cm
118cm
119cm
- 18. Multiple Choice
Estimate the mean height of these 123 students (using your calculator)
166cm
167cm
168cm
169cm
- 19. Multiple Choice
Estimate the mean time 116 students spent procrastinating in Mr Chang's class (using your calculator)
21.1 min
22.1 min
23.1 min
24.1 min
- 20. Multiple Choice
Estimate the mean distance 80 students are from their mobile phone at any given time. (using your calculator)
0m
29.5m
31.5m
33.5m
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