Statistics Median vs Mean and Interquartile Range vs Standard Deviation

What is the standard deviation for the data given:

5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 6.89

• 10.1

• 7.26

• 9

Four data sets are shown below.
Set 1: {10, 19, 38, 50, 51}
Set 2: {5, 21, 26, 39, 51}
Set 3: {9, 38, 50, 50, 51}
Set 4: {5, 28, 28, 28, 51}
Which data set has the largest standard deviation?

• Set 1
• Set 2
• Set 3
• Set 4

Find the median of these numbers:
4, 2, 7, 4, 3

• 2
• 5
• 7
• 4

Find the mean of these numbers:
5,11,2,12,4,2

• 4.1
• 6
• 4.5
• 4

What is the IQR for the data given:

5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 10

• 15

• 5

• 20

The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Jenna cycled?

• 24
• 36
• 39
• 52

Find the mean of the given data 8, 7, 5, 9, 6, 13

• 8
• 7.5
• 7.5
• 10

Find the mean of the following numbers 40, 38, 46, 38, 51 and 57.

• 45
• 40
• 38
• 35

Find the IQR of the following numbers 40, 38, 46, 38, 51 and 57.

• 13

• 51

• 38
• 35

Which standard deviation value shows the highest precision: 12.3, 14.6, 15.2 or 19.9?

• 12.3

• 14.6

• 15.2

• 19.9