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Statistics Review
Test Description: Review of statistical parameters and frequencies.
Instructions: Answer all questions to get your test result.
1) The mean is the ______ of a set of data.
A
middle number
B
lowest number
C
highest number
D
average
2) Given these numbers, calculate the range: 3 - 4 - 6 - 7
A
4
B
4,75
C
7
D
3
3) Look at these numbers: 3 - 4 - 5 - 3 - 6 The mode is
A
4
B
5
C
3
D
6
4) The weight is a
A
quantitative continuous variable
B
none of them
C
qualitative variable
D
quantitative discrete variable
5) If we need to calculate percentages, we use the
A
frequency
B
cumulative frequency
C
relative frequency
D
class mark
6) Calculate the median: 3 - 5 - 6 - 3 - 5 - 6
A
3
B
5
C
6
D
4,7
7) An example of a qualitative variable is
A
1 and 2
B
height
C
gender
D
hair's colour
8) If we have intervals in a frequency table, we need to obtain the _____ to calculate the mean.
A
mode
B
cumulative frequency
C
range
D
class mark
9) The first step to group data in intervals is to calculate _____
A
the mean.
B
the range.
C
the mode.
D
the median.
10) The ______ can have more than one value.
A
range
B
mode
C
median
D
mean
*select an answer for all questions
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