Operation Manual

7: Statistische berekeningen 93
Lineaire regressie en benadering
/LQHDLUHUHJUHVVLHLVHHQVWDWLVWLVFKHPHWKRGHYRRUKHW
PDNHQYDQEHQDGHULQJHQHQYHUZDFKWLQJHQ'HPHWKRGH
ZRUGWJHEUXLNWRPHHQUHFKWHOLMQWHYLQGHQGLH]RJRHG
PRJHOLMNGRRUHHQYHU]DPHOLQJ[\JHJHYHQVJHWURNNHQ
NDQZRUGHQ(UPRHWHQWHQPLQVWHWZHHYHUVFKLOOHQGH[\
SDUHQ]LMQ'HUHFKWHOLMQJHHIWGHUHODWLHWXVVHQGH[HQ\
YDULDEHOHQZHHU\ P[EZDDUELMPGH
ULFKWLQJVFRsIILFLsQWLVHQEKHWVQLMSXQWPHWGH\DV
Lineaire regressie. %HUHNHQPEHQUGHFRUUHODWLHFRsIILFLsQWDOVYROJW
 :LVGHVWDWLVWLVFKHUHJLVWHUVGRRURS
WHGUXNNHQ
 9RHUGHHHUVWH[ZDDUGHLQHQGUXNRS
'H+3%,,JHHIWGH[
ZDDUGHZHHU
 9RHUGHRYHUHHQNRPVWLJH\ZDDUGHLQHQGUXNRS
'H+3%,,
JHHIWQKHWDDQWDOYHU]DPHOGHSDUHQZHHU
 *DYHUGHUPHWKHWLQYRHUHQYDQ[\SDUHQ'HQZDDUGHZRUGWELM
LHGHUHLQYRHUYHUKRRJG
 8YLQGWEKHWVQLMSXQWPHWGH\DVGRRURS
WHGUXNNHQ
9HUYROJHQVGUXNWXRS
RPPGHULFKWLQJVFRsIILFLsQWYDQGH
OLMQWHNULMJHQ
 8YLQGWUGHFRUUHODWLHFRsIILFLsQWGRRURS
WHGUXNNHQ
5,80
%HUHNHQWGHSRSXODWLHV
WDQGDDUGGHYLDWLHYDQGH
OHQJWHV[
4,71
*HHIWGH
SRSXODWLHVWDQGDDUGGHYLDWL
HYDQGHJHZLFKWHQZHHU
\
331,00
*HHIWKHWWRWDDOYDQ\
ZHHU
10B.book Page 93 Wednesday, June 28, 2000 3:31 PM