一般具有统计功能的计算器可以直接求出( )
A.平均数和标准差 | B.方差和标准差 |
C.众数和方差 | D.平均数和方差 |
18-19七年级上·全国·单元测试 查看更多[7]
北师大版七年级数学上册_第六章_数据的收集与整理_单元检测试卷华师大版八年级数学下20.3 数据的离散程度 同步练习(已下线)第15讲 用计算器求平均数-【帮课堂】2022-2023学年九年级数学上册同步精品讲义(苏科版)(已下线)第六章 数据的分析(B卷·能力提升练)-【单元测试】2022-2023学年八年级数学上册分层训练AB卷(北师大版)京改版八年级数学下册第17章方差与频数分布单元测试卷沪教版九年级下册数学 第28章 统计初步 单元测试卷第19章 数据的分析 单元测试卷人教版(五四制)七年级下册数学
更新时间:2018-11-15 13:33:40
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【知识点】 用计算器求平均数
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【推荐1】在计算器上,小明将按键顺序![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45952378dc58b5a50468f17919f86a4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc0dd0c9e70b4ccaacd5cd97a08cbbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0fb6e78eec20f8b19d09d0b0d0cdcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c93d77166656b470280ff98c3d4de6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c262a5d3bc15ace83289edff7a44984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf423369acfe7ee50f66d1b71fce16f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec7e34ff3a6d7446f93d6881bcbcd09e.png)
的显示结果记为a,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e336bff9450bb039543ca70e30c4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8750d75e16665f28fb329518cc5d107a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec7e34ff3a6d7446f93d6881bcbcd09e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328e00aa75e5077fcea2c1487f94f2df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a63151366f03b217480be541073c0411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328e00aa75e5077fcea2c1487f94f2df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328e00aa75e5077fcea2c1487f94f2df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71d65c659465f0aaed36d6d1b2aed05f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328e00aa75e5077fcea2c1487f94f2df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d005f0ec5059063a6fed17a9adbe79a7.png)
的显示结果记为b,则a与b的乘积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45952378dc58b5a50468f17919f86a4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc0dd0c9e70b4ccaacd5cd97a08cbbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0fb6e78eec20f8b19d09d0b0d0cdcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c93d77166656b470280ff98c3d4de6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c262a5d3bc15ace83289edff7a44984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf423369acfe7ee50f66d1b71fce16f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec7e34ff3a6d7446f93d6881bcbcd09e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5adb14dcc77f2d03ca1f8491f14dc01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e336bff9450bb039543ca70e30c4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8750d75e16665f28fb329518cc5d107a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec7e34ff3a6d7446f93d6881bcbcd09e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328e00aa75e5077fcea2c1487f94f2df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a63151366f03b217480be541073c0411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328e00aa75e5077fcea2c1487f94f2df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328e00aa75e5077fcea2c1487f94f2df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71d65c659465f0aaed36d6d1b2aed05f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328e00aa75e5077fcea2c1487f94f2df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d005f0ec5059063a6fed17a9adbe79a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5adb14dcc77f2d03ca1f8491f14dc01.png)
A.![]() | B.![]() | C.![]() | D.6 |
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【推荐2】某商店
天的营业额如下(单位:元):
,
,
,
,
,利用计算器求得这
天的平均营业额是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3408e0168027db94e18a82585b173834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9fb780001fb0f2de5a44193a690ce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a83c5fb7428c9fc5955627a8175247a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851d9eb891c8a6cee9a7a7ca9135dcd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718a49b6bd184c4ef1a1d21389de5373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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