某小区20户家庭某月的用电量如下表所示:
用电量(度) |
120 |
140 |
160 |
180 |
200 |
户数 |
2 |
3 |
6 |
7 |
2 |
则这20户家庭该月用电量的众数和中位数分别是
A.180,160; B.160,180; C.160,160; D.180,180.
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某小区20户家庭某月的用电量如下表所示:
用电量(度) |
120 |
140 |
160 |
180 |
200 |
户数 |
2 |
3 |
6 |
7 |
2 |
则这20户家庭该月用电量的众数和中位数分别是
A.180,160; B.160,180; C.160,160; D.180,180.