# Y Bar Statistics

Introduction to y-bar statistics:

Let us see about y-bar statistics. In statistics the graphs are used torepresent the data.  The statistics bar graph is called as y-bar graph.In y-bar statistics the bars are parallel to the y-axis. Generally, thegraphs are supported to symbolize the business data, temperature, and frequency. Generally, the graphs are classified by five types.

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## Examples of y-bar statistics:

Let us see some examples of y-bar statistics.

Example 1:

Solve the y-bar statistics for the following data.

 Month visitors Jan 67 Feb 91 March 96 April 37 May 46 June 61 July 83 Aug 71 Sep 92 Oct 73 Nov 61 Dec 84

Solution:

The y-bar statistics shows the months and the visitors. The months are specified in x-axis and the visitors are specified in y-axis.

Thus the y-bar statistics graph is solved.

Example 2:

Solve the y-bar statistics for the following data.

 Experience Income 5years \$ 24,000 10 years \$27,000 15 years \$35,000 20 years \$42,000 25 years \$49,000 30 years \$ 52,000 40 years \$ 59,000

Solution:

The y-bar statistics shows the experience and the income. The experience is specified in x-axis and the income is specified in y-axis.

Thus the y-bar statistics graph is solved.

Example 3:

Solve the y-bar statistics for the following data.

 Month Sale rate of laptop Jan 5% Feb 10% March 2% April 7% May 8% June 3% July 1% Aug 6% Sep 9% Oct 11% Nov 20% Dec 16%

Solution:

The y-bar statistics shows the months and the sales rate of laptop. Themonths are specified in x-axis and the sale rate of laptop is specifiedin y-axis.

Thus the y-bar statistics graph is solved.

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## One more example of y-bar statistics:

Solve the y-bar statistics for the following data.

 Item P Q R S T U V W X Quality 25% 78% 77% 88% 90% 37% 45% 65% 76%

Solution:

The y-bar statistics shows the items and the quality. The items are specified in x-axis and the quality is specified in y-axis.

Thus the y-bar statistics graph is solved.