Question

Scenario : A researcher wishes to analyze an outbreak of measles among unvaccinated children in their state. They have access to the following data for each case: age at time of infection, duration of infection (in weeks), and disease outcome (death or survival).

1) What kinds of data are these (nominal, ordinal, interval or ratio)? explain your answer.

2) Describe one statistic that you would calculate from these data to help understand the outbreak and explain your answer.

Answer 1

1) Nominal data:

Nominal data is known nominl scale is a type of data that is used to label variate without providing any quantitative value . it is simpest form of a scale of measure. nominal data can not be ordered and can not be measured .nominal data includes words,letters, and symbols also names for people ,gender,nationality.

example: male& female

Ordinal data:

The order of the valus is whats important and significant but the differences between each one is nor really known is known as ordinal data

example: How do you feel today

1) very happy

2)unhappy

3)ok

4)happy

Ratio data:

No negative numeric value in ratio data or equal units of measurment and those taken from true zero is known as ratio data.

example: weights,volumes,rates

Interval data:

In interval data we known not only the order but exact differences ,and difeerences is same

example : differences betwwen tempertature time schedule

2)

suppose in a room there is so many people so we say that in this people male and female is known as nominal data,and this room this people feel is ordinal data and the weights of this people is ratio data and the before 1 hors and now temperature differences is known as interval data int this room