Final answer:
The antonym of 'perennial' is 'fleeting,' as it suggests something unstable and short-term, which is opposite to 'perennial'. Duration is classified as quantitative continuous data, because it can be measured in infinite values within a range.
Step-by-step explanation:
The antonym for perennial as an adjective, which means long-lasting or enduring over many years, is c) fleeting. The options provided are:
- a) brief
- b) enduring
- c) fleeting
- d) recurring
'Brief' and 'fleeting' are similar in meaning, suggesting something that lasts for a short period of time. However, the best choice for the strict antonym of perennial, which is stable and not easily changed, is 'fleeting', as it denotes something unstable and short-term.
In regards to the second question:
The duration (amount of time) is a type of data that can be measured and therefore is quantifiable. It is called quantitative continuous data because it can have infinitely many values within a selected range, such as time, which can be measured to fractions of a second or less, making the correct answer c) quantitative continuous.