更多“Which month is this month? (Nov, Dec. or Oct.)”相关的问题
第1题
You are a Chinese student. True or false?
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第3题
The mean of blood pressure in a series of boys is 120 kPa, and the standard deviation of the same data is 10 kPa, the coefficient of variation of this data equals
A、8.3%
B、6.5%
C、4.2%
D、10.2%
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第4题
Describe which measure of central tendency—mean, median, geometric mean or mode—was probably used in each situation. 3) Most people prefer red convertibles over any other color.
A、mean
B、median
C、geometric mean
D、mode
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第5题
If a variable is measured in feet, its units on the variance will also be in feet, true or false?
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第6题
Dispersion is a measure of the variability among the elements of a population or sample, true or false?
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第7题
If data area skewed, geometric mean can be used to describe the central tendency, true or false?
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第8题
The observations are listed as 10, 11, 15 and 18, What is standard deviation of these observations ? (keep one decimal in your answer)
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第9题
Which graph is best to describe frequency table
A、Histogram
B、Bar graph
C、Line graph
D、Pie graph
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第10题
In the construction of a frequency distribution, it is a good idea to have overlapping class limits, such as 10–20, 20–30, 30–40. True or false?
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