HELP Fast
A student recorded the quiz scores for the first semester on the line plot. If the outlier(s) were removed, what would be the mean score?

HELP FastA student recorded the quiz scores for the first semester on the line plot If the outliers were removed what would be the mean score class=

Respuesta :

The mean score when the outlier removed is 8.

Step-by-step explanation:

The number of quiz scores were 15.

The scores are 3,6,7,7,7,7,8,8,8,8,8,9,9,10,10.

That is he scored 4 times 7, 5 times 8, 2 times 9 and 10.

The mean [tex]m=\frac{sum of all the values}{total number of the values}[/tex].

Here [tex]m=\frac{3+6+7+7+7+7+8+8+8+8+8+9+9+10+10}{15}[/tex].

[tex]m=\frac{115}{15}[/tex].

m= 7.67.

If outlier 3 is removed then remaining score are 6,7,7,7,7,8,8,8,8,8,9,9,10,10.

The number of quiz scores will be 14

The mean [tex]m=\frac{sum of all the values}{total number of the values}[/tex].

Here [tex]m=\frac{6+7+7+7+7+8+8+8+8+8+9+9+10+10}{14}[/tex].

[tex]m=\frac{112}{14}[/tex].

m= 8.

The mean score when the outlier removed is 8.

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