5272道题目5525 条题源记录 · 相同内容已合并
均值・中位数与集中趋势进阶
The list gives the mass, in grams, of 5 ruffed lemurs.
3,910; 3,910; 3,130; 3,950; 3,150
What is the mean mass, in grams, of these 5 ruffed lemurs?
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均值・中位数与集中趋势挑战
An environmental scientist is investigating the volatility of 175 organic compounds by finding the boiling point of each compound. The mean boiling point of all 175 compounds is 167 degrees Celsius. The scientist classifies each of these compounds as either semivolatile or volatile. Of the 175 compounds, 50 compounds were classified as semivolatile, and these 50 compounds have a mean boiling point of 322 degrees Celsius. The remaining 125 compounds were classified as volatile. What is the mean boiling point, in degrees Celsius, of the 125 compounds classified as volatile compounds?
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均值・中位数与集中趋势挑战
Data set A: 5,8,11,11,14, 20
Data set B:5,8,11,11,14,20,41
Two data sets are shown. Which statement best compares the medians of the data sets?
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均值・中位数与集中趋势挑战
\( 6,\ 6,\ 12,\ 16,\ 35 \)
What is the median of the data set shown?
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均值・中位数与集中趋势进阶
Data set A and data set B each consist of 33 values. The table shows the frequencies of the values for each data set. Which of the following statements best compares the means of the two data sets?
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均值・中位数与集中趋势进阶
The list gives the mass, in grams, of 5 ruffed lemurs.
3,810; 3,810; 3,530; 3,850; 3,550
What is the mean mass, in grams, of these 5 ruffed lemurs?
原库参考解析
均值・中位数与集中趋势进阶
The list gives the mass, in grams, of 5 ruffed lemurs:
3,810; 3,810; 3,030; 3,850; 3,050
What is the mean mass, in grams, of these 5 ruffed lemurs?
原库参考解析
均值・中位数与集中趋势进阶
The list gives the mass, in grams, of 5 ruffed lemurs.
3,710; 3,710; 3,130; 3,750; 3,150
What is the mean mass, in grams, of these 5 ruffed lemurs?
原库参考解析
均值・中位数与集中趋势挑战
28, 28, 29, 30, 32, 33, 37
What is the mean of the data set shown?
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均值・中位数与集中趋势挑战
The histogram summarizes a data set of the weights, in pounds, of 14 salmon. If an additional weight of 32 pounds is added to the original data set to create a new data set of 15 weights. Which of the following measures must be less for the new data set than for the original data set?
Ⅰ. The median
Ⅱ.The mean
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均值・中位数与集中趋势进阶
The frequency table summarizes the mass, in grams, of 35 objects. What is the mean mass, in grams, of these objects?
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均值・中位数与集中趋势挑战
For data set \( A \), the table summarizes the distribution of the number of pieces of mail received by a business each day during a period of \( 11 \) days.
The data value \( 17 \) is removed from data set \( A \) to create data set \( B \), which consists of the remaining \( 10 \) data values. Which statement best compares the median of data set \( A \) and the median of data set \( B \)?
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