利用右列數據 18,12,23,67,48,3,24,35,8,27
(a) 求以上數據的全距及四分位數間距;
(b) 若把數據中最少的值刪除,求餘下數據的四分位數間距
Maths功課~~~ 請幫忙~~~
2007-03-29 12:18 am
回答 (3)
2007-03-30 6:21 am
a) 全距: 65
四份位間距: 12and 35
mean is 23.5
b)
四份位間距: 15 and 41.5
mean is 24
四份位間距: 12and 35
mean is 23.5
b)
四份位間距: 15 and 41.5
mean is 24
2007-03-29 9:10 pm
a.3,8,12,18,23,24,27,35,48,67
全距:67-3=64
上四分位數:35+(48-35)*0.25
=35+13*0.25
=35+3.25
=38.25
下四分位數：12+(18-12)*0.75
=12+6*0.75
=12+4.5
=16.5
四分位數間距:38.25-16.5
=21.75
b.即刪除 3
下四分位數:(12+18)/2
=30/2
=15
上四分位數:(35+48)/2
=41.5
四分位數間距:41.5-15=26.5
全距:67-3=64
上四分位數:35+(48-35)*0.25
=35+13*0.25
=35+3.25
=38.25
下四分位數：12+(18-12)*0.75
=12+6*0.75
=12+4.5
=16.5
四分位數間距:38.25-16.5
=21.75
b.即刪除 3
下四分位數:(12+18)/2
=30/2
=15
上四分位數:(35+48)/2
=41.5
四分位數間距:41.5-15=26.5
2007-03-29 1:11 am
3,8,12,18,23,24,27,35,48,67
a) 全距=67-3 = 64
四分位數間距 = 35-12 = 23
b) Q1 = (18 + 12)/2 = 15
Q3 = (35 + 48)/2 = 41.5
四分位數間距 = 41.5-15 = 26.5
a) 全距=67-3 = 64
四分位數間距 = 35-12 = 23
b) Q1 = (18 + 12)/2 = 15
Q3 = (35 + 48)/2 = 41.5
四分位數間距 = 41.5-15 = 26.5
參考: my poor maths knowledge
收錄日期: 2021-04-23 21:20:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070328000051KK02004