Chapter 6. Introduction to Statistics

1. Have a look at the table you created in Chapter 5, in the digital MCQs and the other Qs section. Try to label each of the variables you measured and recorded in your table. For example, if you have looked at the amount of time it takes to get to work, or the local shops etc think about what type of variable you would label time.1. Have a look at the table you created in Chapter 5, in the digital MCQs and the other Qs section. Try to label each of the variables you measured and recorded in your table. For example, if you have looked at the amount of time it takes to get to work, or the local shops etc think about what type of variable you would label time.

2. Match these different variables with the correct type of variable. The first one has been done for you.

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Ans: 

Weight of a new born baby

Ratio

Number of cats fighting at night

Discrete

Type of tattoo on the leg

Nominal

Number of times a G flat is played on a piano

Discrete

Favourite chocolate bar

Nominal

Height of Big Ben

Ratio

Amount of weight lost

Ratio

Level of satisfaction from eating an ice cream (can be marked as: low, medium, high)

 Ordinal

3. What units would you use for amount of weight lost?

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Ans: Depends on what is being weighed, which would determine the units being used. For example, if you intended to measure weight loss in humans, you would use kilograms or pounds – kilograms (metric system) or pounds (imperial system). If you were looking at weight loss in hamsters, you might want to use grams instead (since you are dealing with smaller weights).