秋電大社會(huì)統(tǒng)計(jì)學(xué)期末復(fù)習(xí)練習(xí)題資料小抄(文件)
【正文】 76 101037 75 101052 70 101024 91 101038 70 101053 88 101025 87 101039 76 101054 93 101026 78 101040 90 101055 62 101027 85 101041 76 101056 95 101028 96 101042 86 101057 95 101029 87 101043 97 101058 66 101030 86 101044 93 101059 82 101031 90 101045 92 101060 79 101032 91 101046 82 101061 76 101033 80 101047 80 101062 76 101034 81 101048 90 101063 68 101035 80 101049 88 101064 94 101036 83 101050 77 101065 83 要求： （ 1）對(duì)考試成績(jī)按由低到高進(jìn)行排序，求出眾數(shù)、中位數(shù)和平均數(shù) 。 （ 2）商品銷售量的變差中有多少是由價(jià)格的差異引起的？ （ 3）銷售量與價(jià)格之間的相關(guān)系數(shù)是多少？ 招聘職員時(shí)，要求對(duì)職員進(jìn)行兩項(xiàng)基本能力測(cè)試。要求： （ 1）寫出 廣告費(fèi)用 y 與 銷 售量 程 x 之間的線性回歸方程。 （ 1）試用 95%的置信水平，計(jì)算網(wǎng)絡(luò)用戶每天平均上網(wǎng)時(shí)間的置信區(qū)間。通過對(duì)每個(gè)工人生產(chǎn)的產(chǎn)品數(shù)進(jìn)行分析得到下面的方差分析表。 乙單位月收入分布 表 按 收入 分組（ 元 ） 人 數(shù)（ 個(gè) ） 3000 分以下 120 3000~4000 420 4000~5000 540 5000~6000 420 6000 以上 300 合計(jì) 1800 要求： （ 1） 計(jì)算 乙單位員工月收入 的均值和標(biāo)準(zhǔn)差。 （ 2）假如明年計(jì)劃投入廣告費(fèi)用為 25 萬元，根據(jù)回歸方程估計(jì)明年汽車銷售量。 （ 2）如果按照規(guī)定，銷售額在 125 萬元以上的為先進(jìn)企業(yè)， 115 萬 125 萬之間的為良好企業(yè)，105 萬 115 萬之間的為一般企業(yè)， 105 萬以下的為落后企業(yè)，請(qǐng)按先進(jìn)企業(yè)、良好企業(yè)、一般企業(yè)、落后企業(yè)進(jìn)行分組，編制頻數(shù)分布表，并計(jì)算累積頻數(shù)和累積頻率。請(qǐng)問： （ 1）是男生體重差異大還是女生體重差異大？為什么？ （ 2）男生中有多少比重的人體重在 55 千克 65 千克之間？ （ 3）女生中有多少比重的人體重在 40 千克 60 千克之間？ 12．某公司欲了解廣告費(fèi)用 x對(duì)銷售量 y 的影響，收集了 16 個(gè)地區(qū)的數(shù)據(jù)，并對(duì) x、 y 進(jìn)行線性回歸分析，得到：方程的截距為 280，回歸系數(shù)為 ，回歸平方和 SSR=1503000，殘差平方和SSE=38000。 ，抽取了 450 個(gè)家庭的簡(jiǎn)單隨機(jī) 樣本，得到樣本均值為 200升，樣本標(biāo)準(zhǔn)差為 50升。 注： ? 4 種方法培育稻米，為確定哪種方法生產(chǎn)效率最高，隨機(jī)劃出 40塊試驗(yàn)田，并指定每塊試驗(yàn)田使用其中的一種方法。s 10 mustsee animations】 The Chinese animation industry has seen considerable growth in the last several years. It went through a golden age in the late 1970s and 1980s when successively brilliant animation work was produced. Here are 10 mustsee classics from China39。s education. Proponents of the show claim that it is merely for entertainment. Effendi Effendi, meaning sir and teacher in Turkish, is the respectful name for people who own wisdom and knowledge. The hero39。s law. In order to pass this holy book to human beings, he would have to get by the antagonist fox. The whole animation is characterized by charming Chinese painting, including pavilions, ancient architecture, rippling streams and crowded markets, which fully demonstrate the unique beauty of China39。s trip to the West to take the Buddhistic sutra. They met a white bone evil, and the evil transformed human appearances three times to seduce the monk. Twice Monkey King recognized it and brought it down. The monk was unable to recognize the monster and expelled Sun Wukong. Xuan Zang was then captured by the monster. Fortunately Bajie, another apprentice of Xuan Zang, escaped and persuaded the Monkey King to e rescue the monk. Finally, Sun kills the evil and saves Xuan Zang. The outstanding animation has received a variety of awards, including the 6th Hundred Flowers Festival Award and the Chicago International Children39。s feud with Nezha over his son39。t want to steal food like other mice. Shuke became a pilot and Beita became a tank driver, and the pair met accidentally and became good friends. Then they befriended a boy named Pipilu. With the help of PiPilu, they cofounded an airline named Shuke Beita Airlines to help other animals. Although there are only 13 episodes in this series, the content is very pact and attractive. The animation shows the preciousness of friendship and how people should be brave when facing difficulties. Even adults recalling this animation today can still feel touched by some scenes. Secrets of the Heavenly Book Secrets of the Heavenly Book, (Chinese: 天書奇談 ) also referred to as Legend of the Sealed Book or Tales about the Heavenly Book, was released in 1983. The film was produced with rigorous dubbing and fluid bination of music and vivid animations. The story is based on the classic literature Ping Yao Zhuan, meaning The Suppression of the Demons by Feng Menglong. Yuangong, the deacon, opened the shrine and exposed the holy book to the human world. He carved the book39。s recall these colorful images that brought the country great joy. Calabash Brothers Calabash Brothers (Chinese: 葫蘆娃 ) is a Chinese animation TV series produced by Shanghai Animation Film Studio. In the 1980s the series was one of the most popular animations in China. It was released at a point when the Chinese animation industry was in a relativ
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