Video: Koj pom qhov nruab nrab ntawm lub tshuab xam zauv li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog xam nruab nrab , ua ntej, nrhiav tus lej siab tshaj thiab qis tshaj hauv koj cov ntaub ntawv teev. Tom qab ntawd faib cov sum ntawm qhov siab tshaj x tus nqi thiab qhov tsawg kawg nkaus x tus nqi los ntawm ob (2), nws yog tus qauv los xam Nruab nrab . Txhawm rau xam nws, koj yuav tsum npaj koj cov ntaub ntawv nyob rau hauv kev txiav txim los ntawm siab tshaj mus rau qis tshaj los yog qis tshaj mus rau siab tshaj.
Kuj nug, ua li cas koj nrhiav tau qhov nruab nrab?
Nws tseem yog ib qho tseem ceeb kom paub seb tus lej twg yog qhov nruab nrab ntawm tus nqi tsawg thiab tus nqi loj tshaj ntawm cov ntaub ntawv teev. Tus lej no hu ua nruab nrab . Yuav nrhiav tau nruab nrab , ntxiv ua ke qhov tsawg kawg nkaus thiab loj tshaj qhov tseem ceeb thiab faib los ntawm ob, los yog nyob rau hauv lwm yam lus, nrhiav qhov txhais tau tias ntawm qhov tsawg tshaj plaws thiab loj tshaj qhov tseem ceeb.
Tsis tas li ntawd, koj pom qhov ntsuas ntawm qhov chaw li cas? Plaub ntsuas ntawm qhov chaw yog nruab nrab, nruab nrab, hom, thiab nruab nrab. Mean – Qhov nruab nrab yog qhov koj paub li qhov nruab nrab. Nws raug xam los ntawm kev noj tag nrho cov txiaj ntsig hauv ib txheej thiab faib lawv los ntawm tag nrho cov txiaj ntsig hauv cov txheej txheem ntawd. Qhov nruab nrab yog rhiab heev rau outliers (ntau dua ntawm outliers hauv me ntsis).
Tsis tas li ntawd, tus qauv rau nruab nrab hauv kev txheeb cais yog dab tsi?
Cov qauv mus nrhiav tau nruab nrab = (siab + qis) / 2. Cov teeb meem piv txwv: tam sim no tus nqi ntawm lub xov tooj ntawm tes hauv lub khw muag khoom ntawm lub xov tooj ntawm tes yog li ntawm $ 40 (qhov pheej yig tshaj) txog $ 550 (tus nqi kim tshaj). Nrhiav tus nruab nrab . Kauj Ruam 1: Ntxiv tus nqi qis tshaj rau qhov siab tshaj: $ 550 + $ 40 = $ 590.
Puas yog Midrange tib yam li qhov nruab nrab?
Yog hais tias qhov kev faib tawm yog symmetric, ces tus nruab nrab yuav yog kwv yees li ib yam raws li qhov txhais tau tias (thiab nruab nrab ). Yog li, los ntawm kev ua qhov nruab nrab ntawm qhov max thiab min, qhov nruab nrab yog qhov tseeb sim ntsuas qhov nruab nrab ntawm cov ntaub ntawv.
Pom zoo:
Yuav ua li cas koj pom lub kaum sab xis nruab nrab muab qhov chaw thiab lub vojvoog ntawm ib lub sector?
Kev txiav txim siab Central Angle Los ntawm Sector Area (πr2) × (central angle in degrees ÷ 360 degrees) = sector area. Yog hais tias lub hauv paus lub kaum sab xis ntsuas nyob rau hauv radians, lub mis hloov mus ua: sector cheeb tsam = r2 × (central kaum hauv radians ÷ 2). (θ ÷ 360 degree) × πr2. (52.3 ÷ 100π) × 360. (52.3 ÷ 314) × 360
Yuav ua li cas koj pom qhov nruab nrab thiab nruab nrab ntawm daim duab peb sab?
Txhawm rau nrhiav qhov chaw nruab nrab ntawm daim duab peb sab, nws yog qhov yooj yim tshaj plaws los kos tag nrho peb qhov nruab nrab thiab nrhiav lawv qhov kev sib tshuam. Txhawm rau kos qhov nruab nrab ntawm daim duab peb sab, ua ntej nrhiav qhov nruab nrab ntawm ib sab ntawm daim duab peb sab. Kos ib kab ntu uas txuas qhov taw tes no mus rau qhov rov qab vertex
Yuav ua li cas koj pom cosine ntawm lub tshuab xam zauv scientific?
Nias lub pob 'Cos', feem ntau pom nyob nruab nrab ntawm lub tshuab xam zauv. 'Cos' yog luv luv forcosine. Koj lub laij lej yuav tsum tso saib 'cos.'Sau qhov ntsuas ntawm lub kaum sab xis koj xav paub cov cosineratio ntawm
Yuav ua li cas los hloov ib tug quadratic kab zauv los ntawm vertex daim ntawv rau lub tshuab xam zauv?
Lub laij lej rau kev hloov pauv los ntawm daim ntawv yooj yim mus rau vertex daim ntawv y = x2 + 3x + 5. x2 + 3x + 5 = || +(p2)2-(p2)2=0. || a2+2ab+b2=(a+b)2. || -1⋅-1=+1. xS=-32=-1.5. yS=-(32)2+5=2.75
Koj pom qhov nruab nrab thiab nruab nrab hauv tableau li cas?
Kev sib txuas lus cov ntaub ntawv nrog Tableau los ntawm Ben Jones Qhov nruab nrab (lossis nruab nrab) yog txiav txim siab los ntawm kev suav tag nrho cov txiaj ntsig hauv cov ntaub ntawv teev thiab faib los ntawm tus lej ntawm qhov tseem ceeb. Qhov nruab nrab yog tus nqi nruab nrab hauv cov ntaub ntawv teev nyob rau hauv uas qhov tseem ceeb tau muab tso rau hauv kev txiav txim ntawm qhov loj