Indicate whether the data are time series or cross-sectional. Average decibel le
ID: 3068842 • Letter: I
Question
Indicate whether the data are time series or cross-sectional. Average decibel level at every World Series game each half-hour Choose the correct answer below. O A. The data are time series because the data are measured over time. O B. The data are cross-sectional because the data are measured over time. ° C. The data are time series because the data are taken from situations that vary over time but are measured for the same time period. O D. The data are cross-sectional because the data are collected from various subjects at a specified instant or interval in time.
Explanation / Answer
Time-series data refers to observations made over a period of time at regular intervals.
Cross-sectional data on the other hand, contains observations on multiple phenomena observed at a single point of time.
So here we have regular interval of time and a single variable on which observation is to be made so
Answer is a) Time series because they data are measured over time.