Comparing Interpreting Measures of Center and Variation

What is the mode in this set of numbers:
7, 14, 20, 3, 7, 14, 2, 14, 7

• 7

• 20

• 7 & 14

• none of the above

Order the data and find the Inter- Quartile Range (IQR)
2,3,3,3,4,4,4,5,5,5,5,6,6,6,6,6,7,7,8,8,8,9,9

• 3

• 4

• 5

• 6

The time spent in minutes b 20 students waiting in a line to buy their favourite meal  were: 
3.4     2.1    3.8    2.2    4.5    1.4    0         0      1.6    4.8  
1.5    1.9     0       3.6    5.2    2.7    3.0    0.8     3.8    5.2
What is the upper quartile or Q₃? 

• 2.0

• 2.45

• 3.8

• 1.45

What is the mode?

• Number that occurs the most

• The Average

• The difference between the highest and lowest values

• The Number in the middle

What is the mean?

• The number that occurs the most

• The number in the middle

• The difference between the highest and lowest values

• The Average

What is the median?

• The number in the middle

• The difference between the highest and lowest values

• The number that occurs the most

• The average

When finding the median what is the FIRST step?

• Mark off the lowest number

• Mark off the highest number

• Find the Middle

• Arrange the number from Least to Greatest

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.

12,10,10,10,13,12,11,13,10

• 13

• 12

• 11

• 10

What is the first step when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the distances

• Find the mean of the data

What is the second step when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the distances

• Find the mean of the data