Measures of Center Flashcards

(8 cards)

1
Q

What are measures of center?

A

Measures of center are used in statistics. They are used to find something related to the center.

This includes mean and median

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2
Q

What is mean

A

Mean is the average for a set of numbers

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3
Q

What is the median

A

The median in statistics is the middle value of a data set when the numbers are arranged in order.

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4
Q

How do you find the median

A
  1. Arrange the data set from least to greatest
  2. Find the middle value
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5
Q

How do you find the mean

A
  1. Add up all the numbers
    2.Divide the sum by how many numbers there are

For example, 10, 3, and 4, I first add them all up (17), then I divide (in this case, 3). So the mean is 5.7

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6
Q

What measure of center is used for skewed data sets?

A skewed data set is when the data is not balanced, and it favors one side more than the other

A

Median

It’s median because it is less affected by the greater numbers

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7
Q

What measure of center is used for symmetrical data sets?

A

Mean

Because it best represents the center of distribution

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8
Q

What is mode

A

Mode means that out of all the numbers in the data set, x number is the most common (or greastest)

X is a placeholder

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