Which of the following is not needed when making a box plot?

Mathematics

2 answers:

algol133 years ago

3 0

The mean is not needed to make a box plot.

I hoped this helped!

Fofino [41]3 years ago

3 0

Answer: A) Mean

You use the median as the center of the boxplot. The first and third quartiles (Q1 and Q3) make up the left and right edges of the box. The min and max are the furthest points on the left and right side of each whisker. The mean is not used at all. With outliers, the mean is skewed. If you have any outliers then its best to use the median instead.

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A class contains 13 boys and 17 girls. of the girls, 25% have blond hair. what percentage of the class are blonds

Zigmanuir [339]

For this case, we first look for the number of blonde girls.
We have then:
$(25/100) * (17) = 4.25
$
We are now looking for the percentage of the class with blonde hair.
For this, we make the following rule of three:
30 --------------> 100%
4.25 -----------> x
From here, we clear the value of x.
We have then:
$x = (4.25 / 30) * (100)

x = 14.2%$
Answer:
14.2% of the class are blonds

7 0

3 years ago

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Find all outliers for the data.20, 16, 8, 12, 6, 31, 15, 14

Naddika [18.5K]

Answer:

Step-by-step explanation:

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Our data;

$20, 16, 8, 12, 6, 31, 15, 14$