"quantity"exercise:Statistical Concepts and Market Returns
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Questions 1:
A descriptive measure of a population characteristic is best described as a:
A、 parameter.
B 、sample statistic.
C 、frequency
Questions 2:
The daily intraday price performance of a security over a specified period could best be analyzed with which type of chart?
A 、Line
B 、Candlestick
C、 Point and figure
A is correct. Any descriptive measure of a population characteristic is called a parameter.
B is incorrect. A sample statistic is a quantity computed from or used to describe a sample.
C is incorrect. A frequency distribution is a tabular display of data summarized into a relatively small number of intervals.
B is correct. A candlestick chart includes four prices per data point entry: the opening and closing prices and the high and low prices during the period. If constructed with daily data points, the daily intraday price performance will be evident in this type of chart.
A is incorrect. Line charts only show one price per data point, typically the closing price, which will not demonstrate intraday price performance.
C is incorrect. Point and figure charts record the number of price changes over time, but not based on a consistent time scale. Consequently, definitive intraday information is not necessarily available
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