Sunday 10 July 2016
INTRODUCTION OF STATISTICAL DATA
In statistical data we need to Collect, organize and
presenting a large amount of data by using bar charts, pictograph, line graph
and dot plot.
Bar chart :
Bar charts are a type of graph that are used to display and compare
the number, frequency or other measure (e.g. mean) for different discrete
categories of data
Tis is the example of bar chart:
QUESTION:
- What is the title of this bar graph?
- What is the range of values on the (vertical) scale?
- How many categories are in the graph?
- Which food had the highest percentage of sugar?
- Which food had the lowest percentage of sugar?
- What percentage of sugar is in soda?
- What is the difference in percentage of sugar between ice cream and crackers?
ANSWER:
- 1 Amount of sugar of certain food.
- 20 – 35
- 37
- Chocolate bar
- Ketchup
- 28.9 %
- 21.4 – 11.8 = 9.6
DOT PLOT :
The student one social studies class were asked how many
brothers and sister they have. The plot here shows the result
Question:
- How many of the students have six siblings?
- How many of student don’t have siblings?
- How many of student have three or more siblings?
ANSWER:
- How many of the students have six siblings? = 1
- How many of student don’t have siblings? = 3
- How many of student have three or more siblings? = 11
Video:
*Note: if there something you wanna ask just leave a comment, thank you! :D*
Hi, can you explain the difference between bar graph and histogram,Thanks!
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