Data and Statistics Flashcards
Identify the outlier in this set
2,4,6,6,7,18
18
Identify the mode in this data set
2,4,6,6,7,18
6
Identify the median in this data set
2,4,6,6,7,18
6
Identify the mean of this data set
1,2,4,6,6,7,18
7
Identify the range of this data set
1,2,4,6,6,7,18
16
What is the mean of this set of data?
25,25,20,37,25,24
26
What is the range of this set of data?
25,25,20,37,25,24
17
What is the mode of this set of data?
25,25,20,37,25,24
25
What is the median of this set of data?
25,25,20,37,25,24
25
Identify the type of data
Shoe Size
Catagorical
Identify the type of data
height
Numerical Continuous
Identify the type of data
Number of students absent
Numerical Discrete
Identify the type of data
Eye Colour
Categorical
Identify the type of data
The number of text messages you send in a day
Numerical Discrete
Identify the type of data
Favourite Number
Categorical
How do you calculate the mean?
‘you add then divide for the mean’
Add all data values together and divide by the total number of values
What is the mode?
‘the mode is the one that occurs the most’
The most frequently occurring data value
What is the range?
‘the range is the difference between’
The difference between the maximum and minimum value
What is the median?
‘hey diddle diddle, the median is the middle’
The middle/centre value of an ordered data set
Write the expression
If gradient is 7
and the
y-intercept is 0
y = 7x
Substitute x for 2 and solve
y = x + 3
5
Substitute x for 4 and solve
y = x + 0.25
4.25
Substitue x for 11 and solve
y = x2 - 60
61
Identify the y-intercept
y=-2.4x+1
1
