首页
登录
职称英语
The median score for the class is [br] If 5 points were added to each score, whi
The median score for the class is [br] If 5 points were added to each score, whi
游客
2025-02-24
12
管理
问题
The median score for the class is [br] If 5 points were added to each score, which of the following would NOT be affected?
选项
A、The highest score
B、The mean for all scores
C、The median for the seniors’ scores
D、The mode for the juniors’ scores
E、The standard deviation for all scores
答案
E
解析
每个分数加5分,下面哪一个数将不受加分的影响?
解:本题的正确答案是(E)。每个分数加5分后,最高分显然加了5分,平均分相应也高了5分,同理大学四年级学生分数的中数也增加5分。“mode”是指出现频率最高的数,本题为76,加了5分之后,mode将变为81分,根据标准方差的计算公式可知,“Standard deviation”在加分前后是不变的。
转载请注明原文地址:https://tihaiku.com/zcyy/3970825.html
相关试题推荐
Themedianscorefortheclassis[br]Ifthemeanscoreforthejuniorswerekn
Themedianscorefortheclassis[br]If5pointswereaddedtoeachscore,whi
Whatisthemedianofthedatagivenbelow?8,13,9,8,15,14,10Themedia
Whatisthedistancebetweenthepoints(0,5)and(5,0)?[*]UsetheDistanceFormula
Solveforxifthemidpointbetweenthetwopoints(x,1)and(-2,-3)is(5,-1).12You
Whatisthedistancebetweenthepoints(3,-4)and(9,4)?10UsetheDistanceFormula
Whatisthemedianofthedatagivenbelow?80,19,82,15,72,345.5Themedianis
Eightpointsareequallyspacedonacircle.If4ofthe8pointsaretobechos
P,Q,andRarethreepointsinaplane,andRdoesnotlieonlinePQ.Whichof
FindthemeanandmedianofthevaluesoftherandomvariableX,whoserelative
随机试题
Animportantpointinthedevelopmentofagovernmentalagencyisthecodifi
______itornot,hisdiscoveryhascreatedastirinscientificcircles.A、Belie
牙周袋形成的主要原因是A.龈组织肿胀 B.龈缘向冠方生长 C.牙槽骨吸收
我国老年人的划分标准是A.50岁以上 B.55岁以上 C.60岁以上 D.
大肠癌最好发的部位是A、乙状结肠 B、降结肠 C、横结肠 D、直肠
患者积块软而不坚,固定不移,胀与痛并存,舌苔薄,脉沉实。其涎候是A.气机阻滞
若商业性住房抵押贷款、住房公积金贷款的年利率分别为8.7%、5%,均按月计息,银
EVA的公式定义是()。 A.EVA=NOPAT+资本X资本成本率B.EVA
律师在执业活动中,应当遵守律师执业规范,以下哪一项或几项违反了律师执业规范?(
一般资料:求助者,女性,35岁,已婚,工厂普通工人。 案例介绍:有一次求助者
最新回复
(
0
)