Numeracy and Data Analysis: Calculation, Representation and Forecasting

NUMERACY AND DATA
ANALYSIS

TABLE OF CONTENTS
MAIN BODY..................................................................................................................................3
1. Arranging the data in tabular format.......................................................................................3
2. Representation of the data using charts...................................................................................3
3. Calculation of the different statistical measures......................................................................5
ΣX / N..........................................................................................................................................5
4. Using the linear forecasting model y= mx + c.........................................................................9
. Predicting value for 12 & 14th day by making use of linear forecasting model........................9

MAIN BODY
1. Arranging the data in tabular format
The table below represents the total number of hours sleeping per day for the 10
consecutive days: -
Days Number of hours sleeping per day
1 8
2 7
3 5
4 9
5 7
6 6
7 7
8 4
9 10
10 9
Total 72
The total number of hours slept in the 10 consecutive days are equal to 72.
2. Representation of the data using charts
Bar Chart: - The bar charts can be referred to the graphical representation of the data in the form
of rectangular bars that differ in the height corresponding to the values that are respectively
stated in the data provided. It can be regarded as the summary of the data that is categorical in
nature through which the easy understanding can be developed in respect of the data (Grebitus
and Davis, 2019). It can be prepared in the four different types which are horizontal, vertical,
grouped and the stacked bar graph. This diagrammatic presentation is supportive as it shall be
presenting the movement that can evidently be noticed by the data analyzer.

1
2
3
4
5
6
7
8
9
10
0 2 4 6 8 10 12
Number of hours sleeping per day
Line Chart: - The line charts are another form of the graphical representation which is done
through a continuous line which established the connection between the several data points. The
curved line formation efficiently displays the information so that the in-depth analysis of the
same can be done visually as well (Martin and Lazendic, 2018). These types of the charts are
mostly used in the financial analysis of the closing prices in the share market, showing the
significant movement of the prices.
1 2 3 4 5 6 7 8 9 10
0
2
4
6
8
10
12
Number of hours sleeping per day