2013 AP Statistics統(tǒng)計(jì)學(xué)真題系列之簡(jiǎn)答題免費(fèi)下載

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2013 AP Statistics Free-Response Questions Free Download

2013 AP統(tǒng)計(jì)學(xué)簡(jiǎn)答題部分免費(fèi)下載

此套題共計(jì)1小時(shí)30分鐘，共6題

占總分50%

每道大題可能含有不同數(shù)量的小題

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

Part B建議用時(shí)25分鐘，共1題，占Section II總分25%

可以使用圖形計(jì)算器

考試時(shí)會(huì)提供常用公式表

完整版下載鏈接見(jiàn)文末

部分真題預(yù)覽：

Part A：

1）An environmental group conducted a study to determine whether crows in a certain region were ingesting food containing unhealthy levels of lead. A biologist classified lead levels greater than 6.0 parts per million (ppm) as unhealthy. The lead levels of a random sample of 23 crows in the region were measured and recorded. The data are shown in the stemplot below.

1. What proportion of crows in the sample had lead levels that are classified by the biologist as unhealthy?
2. The mean lead level of the 23 crows in the sample was 4.90 ppm and the standard deviation was 1.12 ppm. Construct and interpret a 95 percent confidence interval for the mean lead level of crows in the region.

Part B：

6) Tropical storms in the Pacific Ocean with sustained winds that exceed 74 miles per hour are called typhoons. Graph A below displays the number of recorded typhoons in two regions of the Pacific Ocean—the Eastern Pacific and the Western Pacific—for the years from 1997 to 2010.

1. Compare the distributions of yearly frequencies of typhoons for the two regions of the Pacific Ocean for the years from 1997 to 2010.
2. For each region, describe how the yearly frequencies changed over the time period from 1997 to 2010.
   A moving average for data collected at regular time increments is the average of data values for two or more consecutive increments. The 4-year moving averages for the typhoon data are provided in the table below. For example, the Eastern Pacific 4-year moving average for 2000 is the average of 22, 16, 15, and 21, which is equal to 18.50.
3. Show how to calculate the 4-year moving average for the year 2010 in the Western Pacific. Write your value in the appropriate place in the table.

 

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2013 AP Statistics Practice Exam Free-Response Questions Free Download

2013 AP統(tǒng)計(jì)學(xué)模考簡(jiǎn)答題部分免費(fèi)下載

此套題僅Section II含有簡(jiǎn)答題

共計(jì)1小時(shí)30分鐘，共6題

占總分50%

每道大題可能含有不同數(shù)量的小題

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

Part B建議用時(shí)25分鐘，共1題，占Section II總分25%

可以使用圖形計(jì)算器

考試時(shí)會(huì)提供常用公式表

完整版真題資料可以底部二維碼免費(fèi)領(lǐng)取↓↓↓

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