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Grade7 Statistics and Probability
Grade7 Statistics and Probability
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Grade 7 Statistics and Probability Review
Flashcards
16 cards
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Practice quiz
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Questions
16
Answers
1
What is the minimum value of a data set?
The lowest value
The mean
The greatest value
The median value
2
How would you calculate the mean of the following data set? 23, 67, 7, 46, 7, 22, 17, 1
Divide 8 by their sum
Divide their sum by 8
Add them up and divide the total by 7
Line them up in order and find the middle one
3
What is the range of the following data set? 23, 67, 7, 46, 7, 22, 17, 1
66
45
39
60
4
Mary rolls a 3 on a fair die. Is she more or less likely to get a 3 on her next roll?
Not enough info to tell. The die could be loaded.
It makes no difference, they are independent events.
More likely because there is probably a pattern.
Less likely because getting the same score twice is unlikely
5
What is the maximum value of a data set?
The mean
The lowest value
The greatest value
Zero
6
What is the general rule for this pattern: 4, 6, 8, 10, 12, ......
2n
4n-2
+2
2n+2
7
What is the general rule for this pattern: 14, 20, 26, 32, 38......
6n+14
+6
They are all even numbers
6n+8
8
What is the mode of the following data? 23, 67, 7, 46, 7, 22, 17, 1
7
22 and 23
22.5
19.5
9
What is the mean of the following data? 23, 67, 7, 46, 7, 22, 17, 1
23.5
None of the above
23.75
23.25
10
What is the name of the singer pictured in the previous question who lived by "No rules"?
Lux Interior
Captain Sensible
Sid Vicious
Jonny Rotten (aka John Lydon)
11
What is the range of a set of data?
Minimum minus Maximum
Maximum minus Minimum
How many kilometres is roams per day
A chain of hills or mountains
12
The probability of getting exactly 2 heads when you flip a coin 4 times is? (Draw tree diagram)
1/16
None of the above.
6 / 16
4/16
13
What is the general rule for this pattern: 2, 4, 8, 16, 32, ......
2n
n2
2n
x2
14
What is the general rule for this pattern: 2, 4, 6, 8, 10, ......
n+2
n2
+2
2n
15
What is the mean of the following data? 23, 67, 7, 46, 7, 22, 17, 1
24.25
24
None of the above
25
16
What is the median of the following data? 23, 67, 7, 46, 7, 22, 17, 1
7
22 and 23
19.5
22.5
