Chapter 2 notes 4

Question 1

Name the descriptive statistics

Answer 1

Minimum
Maximum
Range
Count
Sum

Question 2

Define minimum

Answer 2

The smallest value in a collection of values

Question 3

Define maximum

Answer 3

The largest value in a collection of values

Question 4

Define range

Answer 4

The range of values from the minimum to the maximum

Question 5

Define count

Answer 5

The number of values in a collection

Question 6

Define sum

Answer 6

The total of the values in a collection

Question 7

What is another name for measures of dispersion?

Answer 7

Measures of variability, such as range, help determine how spread out values are

Question 8

Determining the minimum and maximum with built in functions min and max

Answer 8

In[1]: min(36, 27, 12)
Out[1]: 12

In[2]: max(36, 27, 12)
Out[2] 36

Question 9

The min and max functions are examples of a functiona-style programing concept called _______

Answer 9

Reduction
They reduce a collection of values to a single value
Other’s also include sum, average, variance and standard deviation of a collection of values

Question 10

The range of a collection of values is a measure of _______

Answer 10

Dispersion

Question 11

For the values 47,95,88,73,88 and 84 calculate the range

Answer 11

In[1]: print(‘Range:’, min(47, 95, 88, 73, 88, 84), ‘-‘, max(47, 95, 88, 73, 88, 84))
Out[1]: 47 - 95