Statistics Median vs Mean and Interquartile Range vs Standard Deviation

The range is found by _________________ .

• adding the quartiles

• subtracting the quartiles

• subtracting the maximum value and the minimum value

• the golf course

Mean Absolute Deviation is a measure of _________________________ .

• center

• variability

• average

• anger

Find the median of following test grades:
100   80   70   90   100

• 88
• 100
• 30
• 90

Find the IQR of following test grades:
100   80   70   90   100

• 30
• 20
• 25
• 15

Find the MAD of following test grades:
100   80   70   90   100

• 88
• 52
• 12
• 10.4

When working with a data set the first step should be to ________________________ .

• find the range

• find the mode

• order the numbers

• find the mean

Mean is found by _________________________ .

• finding the sum of the data

• finding the middle

• finding the sum of the data, then dividing by the amount of numbers

• subtracting the minimum minus the maximum

The Yankees had the following wins over the last nine years;
89  103  95  97  95  85   84   87  84.
Find the mean. 

• 103
• 96
• 89
• 91

The Yankees had the following wins over the last nine years;
89  103  95  97  95  85   84   87  84.
Find the mode. 

• 84
• 103
• 95
• 84 and 95

The Yankees had the following wins over the last nine years;
89  103  95  97  95  85   84   87  84.
Find the IQR. 

• 14
• 84.5
• 96
• 11.5