題目列表(包括答案和解析)
56.5 69.5 65 61.5 64.5 66.5 64 64.5 76 58.5 72 73.5 56 67 70 57.5 65.5 68 71 75 62 68.5 62.5 66 59.5 63.5 64.5 67.5 73 68 55 72 66.5 74 63 60 55.5 70 64.5 58 64 70.5 57 62.5 65 69 71.5 73 62 58 76 71 66 63.5 56 59.5 63.5 65 70 74.5 68.5 64 55.5 72.5 66.5 68 76 57.5 60 71.5 57 69.5 74 64.5 59 61.5 67 68 63.5 58 59 65.5 62.5 69.5 72 64.5 75.5 68.5 64 62 65.5 58.5 67.5 70.5 65 66 66.5 70 63 59.5 |
試根據(jù)上述數(shù)據(jù)畫(huà)出樣本的頻率分布直方圖.
56.5 69.5 65 61.5 64.5 66.5 64 64.5
76 58.5 72 73.5 56 67 70 57.5 65.5
68 71 75 62 68.5 62.5 66 59.5 63.5
64.5 67.5 73 68 55 72 66.5 74 63
60 55.5 70 64.5 58 64 70.5 57 62.5
65 69 71.5 73 62 58 76 71 66 63.5
56 59.5 63.5 65 70 74.5 68.5 64 55.5
72.5 66.5 68 76 57.5 60 71.5 57 69.5
74 64.5 59 61.5 67 68 63.5 58 59
65.5 62.5 69.5 72 64.5 75.5 68.5 64
62 65.5 58.5 67.5 70.5 65 66 66.5
70 63 59.5
根據(jù)上述數(shù)據(jù)畫(huà)出樣本的頻率分布直方圖，并對(duì)相應(yīng)的總體分布作出估計(jì).
56.5 69.5 65 61.5 64.5 66.5 64 64.5 76 58.5 72 73.5 56 67 70 57.5 65.5 68 71 75 62 68.5 62.5 66 59.5 63.5 64.5 67.5 73 68 55 72 66.5 74 63 60 55.5 70 64.5 58 64 70.5 57 62.5 65 69 71.5 73 62 58 76 71 66 63.5 56 59.5 63.5 65 70 74.5 68.5 64 55.5 72.5 66.5 68 76 57.5 60 71.5 57 69.5 74 64.5 59 61.5 67 68 63.5 58 59 65.5 62.5 69.5 72 64.5 75.5 68.5 64 62 65.5 58.5 67.5 70.5 65 66 66.5 70 63 59.5 |
試根據(jù)上述數(shù)據(jù)，列出樣本數(shù)據(jù)的頻率分布表，并對(duì)相應(yīng)的總體分布作估計(jì).
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