∵一组数据中若最小数与平均数相等,
∴x1=x2=…=xn,
∴方差为0.
故填0.
一组数据中若最小数与平均数相等,那么这组数据的方差为_.
一组数据中若最小数与平均数相等,那么这组数据的方差为______.
数学人气:157 ℃时间:2019-08-20 08:09:20
优质解答
我来回答
类似推荐
猜你喜欢
- 1P是边长为a的正方形ABCD外一定,PA⊥面ABCD,E为AB中点,且PA=PB,求到平面PCE的距离
- 2月攘一鸡这篇寓言告诉我们一个什么道理
- 3we need another two students to help us(同义句转换) we need ( ) ( )students to help us.
- 4现在快放假了都,员工的心早就不在工作上面了.
- 5Sally is healthy because she eats( )(good) every day.
- 6与双曲线x29−y216=1有共同的渐近线,且经过点(−3,23)的双曲线的方程为( ) A.x24−4y29=1 B.y24−4x29=1 C.4y29−x24=1 D.4x29−y24=1
- 7将100KPa压力下的氢气150ML和45KPa压力的氧气75ML装入250ML的真空瓶,则氢气和氧气的分压分别是多少?
- 8如图,平行四边形中,∠ABC=75°.AF⊥BC于F,AF交BD于E,若DE=2AB,则∠AED=_°.
- 9“令”字在上面“狐”字在下面组成的这个字是什么字?怎么读怎么发音?
- 10John went out to play with his friends after he finished his homework.同义句