Descriptibe Statistica

Question 1

What are Descriptive Statistics used for?

Answer 1

Summarizing and describing data

Descriptive statistics provide a summary of the main features of a dataset.

Question 2

Name the Measures of Central Tendency.

Answer 2

• Mean
• Median
• Mode

These measures provide a central value for a dataset.

Question 3

How is the Mean calculated?

Answer 3

Add all values and divide by the amount

The mean can be affected by extreme values.

Question 4

What is the Median?

Answer 4

The middle value when ordered

The median is unaffected by outliers.

Question 5

What is the Mode?

Answer 5

The value that appears the most

The mode is not affected by outliers and can be used on nominal data.

Question 6

What is the Range in statistics?

Answer 6

Difference between high and low values

The range is quick to calculate but can be skewed.

Question 7

What does Standard Deviation measure?

Answer 7

How spread out data are around the mean

It considers every value and allows for probabilistic statements about data.

Question 8

True or false: The Standard Deviation considers every value in the dataset.

Answer 8

TRUE

A larger standard deviation indicates more spread out data.

Question 9

What is required for data when calculating Standard Deviation?

Answer 9

Data must form a normal distribution

Normal distribution is essential for accurate standard deviation calculations.