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Questions and Answers
What is the name of the average that considers the relative importance of each observation?
What is the name of the average that considers the relative importance of each observation?
- Simple Average
- Moving Average
- Mode Average
- Weighted Average (correct)
A dataset with two distinct peaks is an example of a _______ distribution.
A dataset with two distinct peaks is an example of a _______ distribution.
- Normal
- Multimodal
- Unimodal
- Bimodal (correct)
What is the purpose of a moving average?
What is the purpose of a moving average?
- To smooth out fluctuations in a time series (correct)
- To compare performance across different time frames
- To track changes over time
- To find the overall average of a dataset
What is the formula to calculate the index number?
What is the formula to calculate the index number?
Which type of average is used to find the average score of a class on a test?
Which type of average is used to find the average score of a class on a test?
What is the term for the number of peaks in a dataset?
What is the term for the number of peaks in a dataset?
What is the most widely used measure of central tendency in statistics?
What is the most widely used measure of central tendency in statistics?
What is the middle value in a list of numbers when it is sorted in increasing order?
What is the middle value in a list of numbers when it is sorted in increasing order?
What is the most frequent value in a dataset?
What is the most frequent value in a dataset?
What is the symbol for the population mean?
What is the symbol for the population mean?
What type of sampling involves selecting a subset of the population based on certain characteristics?
What type of sampling involves selecting a subset of the population based on certain characteristics?
What is the average of a dataset that is calculated by giving more weight to certain values?
What is the average of a dataset that is calculated by giving more weight to certain values?
What type of skewness is present when the mean is greater than the median?
What type of skewness is present when the mean is greater than the median?
What is the primary difference between the equation for sample variance and the equation for population variance?
What is the primary difference between the equation for sample variance and the equation for population variance?
According to the Empirical Rule, what percentage of data falls within two standard deviations from the mean?
According to the Empirical Rule, what percentage of data falls within two standard deviations from the mean?
What is the relationship between the variance and the standard deviation?
What is the relationship between the variance and the standard deviation?
What does a low variance indicate about the data points in a dataset?
What does a low variance indicate about the data points in a dataset?
What type of skewness is present when the mean is less than the median?
What type of skewness is present when the mean is less than the median?
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