ڶڡܸԭ
һܸЧӦĺ
еĸܸЧӦָڹ̶õĴڶµģijһԽСȱ䶯ʱһرԽϴȱ䶯Ӫܸˡܸ˺ϸܸʽ
ɱϰԡʹϢ˰ǰ
һɱϰԼ
ɱϰָɱܶҵ֮ϵϵɱϰԿɻΪ̶ɱ䶯ɱͻϳɱࡣ
1.̶ɱ
̶ɱָܶһʱںһҵΧڲҵκα䶯Dzֳɱڹ̶ɱҪаֱ߷۾ɷѡշѡԱʡ칫ѵȡλ̶ɱӶС
̶ɱɽһΪԼԹ̶ɱԹ̶ɱࣺ
1ԼԹ̶ɱҵӪɱҵΪάһҵ븺ͳɱ糧豸۾ɷѡѵȡҵľӪһγɣڶںشı䣬ⲿֳɱкܴԼԡ
2Թ̶ɱҵӪɱҵݾӪȷһʱڣͨΪһ꣩ijɱѡ뿪ѡְѵѵȡ?/P>
Ӧָǣ̶ɱֻܶһʱںҵһΧͨΪطΧڱֲ䡣
2.䶯ɱ
䶯ɱָܶҵ䶯DzֳɱֱӲϡֱ˹ȶڱ䶯ɱƷλɱеֱӲϡֱ˹ֲ䡣
̶ɱͬ䶯ɱҲطΧ
3.ϳɱ
ЩɱȻҲҵı䶯䶯ͬ䶯ɱΪϳɱϳɱҵĹϵֿɷΪ䶯ɱͰ̶ɱ
1䶯ɱͨһʼڹ̶ɱʼĻڱ䶯ɱ
2̶ɱɱı仯ʽһڣֳɱ䣬һȺֳɱԾһˮƽ
ܳɱϰģΪy=a+bx
Уyָܳɱa̶ָɱbָλ䶯ɱxָҵٶȣͬ
