REVISION: DATA DESCRIPTION

Mean is ...

• The sum of all the values in the data set divided by the number of values in the data set.

• the most frequent score in the data set

• average

• the middle score for a set of data that has been arranged in order of magnitude

Mode is ...

• The sum of all the values in the data set divided by the number of values in the data set.

• the most frequent score in the data set

• average

• the middle score for a set of data that has been arranged in order of magnitude

Median is ...

• The sum of all the values in the data set divided by the number of values in the data set.

• the most frequent score in the data set

• average

• the middle score for a set of data that has been arranged in order of magnitude

Standard Deviation is

• square of variance

• square root of variance

The distribution of the data is ...

• Skew to the right

• Skew to the left

• Symmetrical

• None of the above

The distribution of the data is ...

• Skew to the right

• Skew to the left

• Symmetrical

• None of the above

Mean = 29.9

Median = 30.1

Mode = 31

The distribution of the data is ...

• Skew to the right

• Skew to the left

• Symmetrical

• None of the above

Mean = 61 marks

Median = 59 marks

Mode = 55

The distribution of the data is ...

• Positively skewed

• Negatively skewed

• Symmetrical

• None of the above

26, 28, 27, 27, 28, 25, 32, 31, 33, 29, 40, 25

• Ungrouped Data

• Grouped Data

• Ungrouped Data

• Grouped Data