2010 AP Statistics統(tǒng)計學真題系列（Form B）之簡答題免費下載

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2010 AP Statistics (Form B) Free-Response Questions Free Download

2010 AP統(tǒng)計學(Form B)簡答題部分免費下載

此套題共計1小時30分鐘，共6題

占總分50%

每道大題可能含有不同數量的小題

其中Part A建議用時1小時05分鐘，共5題，占Section II總分75%

Part B建議用時25分鐘，共1題，占Section II總分25%

可以使用圖形計算器

考試時會提供常用公式表

完整版下載鏈接見文末

部分真題預覽：

Part A：

1）As a part of the United States Department of Agriculture’s Super Dump cleanup efforts in the early 1990s, various sites in the country were targeted for cleanup. Three of the targeted sites—River X, River Y, and River Z—had become contaminated with pesticides because they were located near abandoned pesticide dump sites. Measurements of the concentration of aldrin (a commonly used pesticide) were taken at twenty randomly selected locations in each river near the dump sites.
The boxplots shown below display the five-number summaries for the concentrations, in parts per million (ppm) of aldrin, for the twenty locations that were sampled in each of the three rivers.

1. Compare the distributions of the concentration of aldrin among the three rivers.
2. The twenty concentrations of aldrin for River X are given below.
   3.4? ?4.0? ?5.6? ?3.7? ?8.0? ?5.5? ?5.3? ?4.2? ?4.3? ?7.3
   8.6? ?5.1? ?8.7? ?4.6? ?7.5? ?5.3? ?8.2? ?4.7? ?4.8? ?4.6
   Construct a stemplot that displays the concentrations of aldrin for River X.
3. Describe a characteristic of the distribution of aldrin concentrations in River X that can be seen in the stemplot but cannot be seen in the boxplot.

Part B：

6) A real estate agent is interested in developing a model to estimate the prices of houses in a particular part of a large city. She takes a random sample of 25 recent sales and, for each house, records the price (in thousands of dollars), the size of the house (in square feet), and whether or not the house has a swimming pool. This information, along with regression output for a linear model using size to predict price, is shown below and on the next page.

1. Interpret the slope of the least squares regression line in the context of the study.
2. The second house in the table has a residual of 49. Interpret this residual value in the context of the study.
   The real estate agent is interested in investigating the effect of having a swimming pool on the price of a house.
3. Use the residuals from all 25 houses to estimate how much greater the price for a house with a swimming pool would be, on average, than the price for a house of the same size without a swimming pool.

完整版真題資料可以底部二維碼免費領取↓↓↓

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