A wedding photographer made $500 on average in the 5 years it has been operational. A sample of 12 months were analyzed and it was found that he made an average of $620. i. Does the value $500 refer to the parameter or to the statistic?  ii. Is the value $620 a parameter or a statistic?

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Q: Guess Actual Age 18 15 25 28 28 24 39 42 50 56 36 45 72 80

A:

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Bar Graphs

A bar graph is a chart or graphical representation of data. A bar chart, also known as a bar graph, is a graph or chart that displays categorical data using rectangular bars with heights or lengths equal to the values they represent. Typically, bar graphs show categorical and numerical variables grouped in class intervals. A bar graph is useful for comparing and analyzing a set of data.