Numeracy and Data Analysis

USING NUMERACY AND
DATA ANALYSIS

TABLE OF CONTENTS
PART 1............................................................................................................................................1
Section 1.......................................................................................................................................1
Section 2.......................................................................................................................................4
PART 2............................................................................................................................................5
1. Summary of the variables in data set.......................................................................................5
2. Determining correlation between Snapchat and Instagram and between Instagram and
Facebook users using scatter Diagrams. .....................................................................................7
3. Graphical and numerical summaries for presenting the data to others..................................10
4. Probability of student chosen at random studying in London and spending at least 2 hours
on social media..........................................................................................................................13

PART 1
Section 1
Question 1
Minutes Hours
20 1/3
36 1 1/2
15 ¼
48 4/5
Question 2
24% of 120 = 28.8
Question 3
a) Fraction Percentage
1/7 15%
3/8 38%
5/9 55%
1 1/2 150%
b)
each student will get 20 pens
Question 4
Total payment 117.6
Aro paid 50.4
Shanti paid 117.6 – 50.4
67.2
Price per ticket 50.4 / 3
1

16.8
Tickets bout by
Shanti 67.2 / 16.8
4
Question 5
a) Binary arithmetic
10110 –
111
10110
-111
1111
b) 1 in 310,325
1 ten
thousand
Question 6
a) savings
Discounted rides
(80%) 60
Discount 20%
Total rides 60 / 80%
75
savings 75 – 60
15
b) savings on 8 taxi 15 * 8
120
Question 7
a) Total heights 56
Total numbers 8
2