5.
某网络营销部门随机抽查了某市\(200\)名网友在\(2015\)年\(11\)月\(11\)日的网购金额,所得数据如下表:
网购金额\((\)单位:千元\()\) | 人数 | 频率 |
\((\)\(0\),\(1\)\(]\) | \(16\) | \(0.08\) |
\((\)\(1\),\(2\)\(]\) | \(24\) | \(0.12\) |
\((\)\(2\),\(3\)\(]\) | \(x\) | \(p\) |
\((\)\(3\),\(4\)\(]\) | \(y\) | \(q\) |
\((\)\(4\),\(5\)\(]\) | \(16\) | \(0.08\) |
\((\)\(5\),\(6\)\(]\) | \(14\) | \(0.07\) |
合计 | \(200\) | \(1.00\) |
已知网购金额不超过\(3\)千元与超过\(3\)千元的人数比恰为\(3∶2\).
\((1)\)试确定\(x\),\(y\),\(p\),\(q\)的值,并补全频率分布直方图\((\)如图\()\);
![](https://www.ebk.net.cn/tikuimages/2/2018/600/shoutiniao89/50bb18eb5b68a4edeacbc09a7d76a668.png)
\((2)\)该营销部门为了了解该市网友的购物体验,从这\(200\)名网友中,用分层抽样的方法从网购金额在\((1,2]\)和\((4,5]\)的两个群体中确定\(5\)人进行问卷调查,若需从这\(5\)人中随机选取\(2\)人继续访谈,则此\(2\)人来自不同群体的概率是多少?