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Y9 T4 Review - Data and Statistics Flashcards | StudBud
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Y9 T4 Review - Data and Statistics
Y9 T4 Review - Data and Statistics
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Data representation, Statistics, and Probability
Flashcards
14 cards
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Practice quiz
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Questions
14
Answers
1
What is the mean, median, and mode for the collection of data below?
mean: 6.50 median: 7.5 mode: 3
mean: 6 median: 7.5 mode: 3
mean: 6.57 median: 7 mode: 3
mean: 5 median: 6 mode: 7
2
Find the mode.
25
10
35
20
3
All Year 9 students have their NAPLAN data recorded. What type of data collection is this?
Numerical
Census/Survey
Observation
Experiment
4
Work out the mean of weights
13
11
10
9
5
Calculate the median
29
38
31
32
6
Define Mode
most common data value
standard deviation
average
middle data value
7
A secondary source is...
websites, textbooks, films, writing, documentaries and books
accounts about the past created after the time being studied
the second source when you have more than one object.
accounts like bank accounts, phone accounts and debts.
8
Find the Median
15
19
100
10.5
9
A primary source is...
evidence created at the time that is being studied.
a letter, document, photograph or object from that time.
a textbook.
a person that knows everything.
10
What is median?
The number that occurs most often.
The middle point of an ordered set of data.
The average of a distribution.
The middle of the road.
11
Rita records the colour of cars driving by the school. What type of data collection is this?
Census/Survey
Categorical
Experiment
Observation
12
Determine the mean (average) of these numbers: 6, 11, 7
10
9
7
8
13
What is an example of a primary source?
encyclopedia
autobiography
magazine
newspaper
14
How is average calculated
Find biggest number and then halve it.
Add all scores and then divide by 4.
Find the bigger of the two middle scores.
Add all scores and then divide by the number of scores.
