Types of Data and Central Tendency

Question 1

Types of categorical data

Answer 1

Nominal, Ordinal, Scale

Question 2

Nominal

Answer 2

Simple categories like yellow, green and blue or male and female

Question 3

Ordinal

Answer 3

Categories that can be ranked. Bronze, silver, gold medals or small, medium and large size

Question 4

Scale

Answer 4

Discrete counts like numbers of coins in a pile or eggs in a nest

Question 5

Continuous

Answer 5

Measures like length of a finder measured with a ruler. Always an in between value so not categorical.

Question 6

Which measure of central tendency is most influenced by very large or very small values in the datset

Answer 6

The mean is influnced by any extermely large or small values (called outliers) within the dataset. This will be particulary pronounced when the dataset is small!

Question 7

Which measure is most influenced by outliers?

Answer 7

Range

Question 8

Which measures of variance are mathmatically linked?

Answer 8

Sample variance, standard deviation and standard error