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The dot plots below show the ages of students belonging to two groups of painting classes:

Based on visual inspection, which group most likely has a lower mean age of painting students? Explain your answer using two or three sentences. Make sure to use facts to support your answer. (10 points)

The Dot Plots Below Show The Ages Of Students Belonging To Two Groups Of Painting Classes Based On Visual Inspection Which Group Most Likely Has A Lower Mean Ag class=

Sagot :

On the base of visual inspection , it can be said that the Group A has an average lower than the Group B

What is a Dot Plot ?

It is the simple form of data visualization , in which the frequency of a data is marked as dots on x and y axis.

The dot plot is given for two groups of 30 people , who go to painting class.

It has been asked that which group most likely has a lower mean age of painting students .

On the base of visual inspection , it can be said that the Group A has an average lower than the Group B

It can be said so as the dots are highest at the age of 19 in Group A , and the whole distribution lies between 9 to 19 age of people ,

while in Group B the age of the people is wide distributed and therefore the average age will be more ,

By calculation it is proved that the average age of Group A is 15.967

and the average age of Group B is 19.7.

To know more about Dot Plot

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