Probabilitas binomial
Kemungkinan persis, paling akeh utawa paling sithik k sukses ing n percobaan.
Babagan Probabilitas binomial
Kemungkinan persis, paling akeh utawa paling sithik k sukses ing n percobaan.
Bagean saka seksi “Statistik” SmartCalcy. Lumaku ing browser panjenengan tanpa akun, nganggo mata uang lan satuan panjenengan dhewe (ganti ing sisih ndhuwur kaca), lan menehi perkiraan mung kanggo informasi, mula priksa pandhuan resmi sadurunge ngandelake asile.
Carane nganggo Probabilitas binomial
Apa sing dietung lan kapan nganggo
Nemokake probabilitas persis, paling akeh utawa paling sethithik k sukses ing n percobaan independen.
Carane nganggo, langkah demi langkah
- Lebokna cacahe percobaan lan probabilitas sukses.
- Lebokna k.
- Waca probabilitas lan rata-rata sarta variansine.
Tegese saben input
- Percobaan (n) – Diwiwiti at 10.
- Kemungkinan sukses saben percobaan – Diwiwiti at 50.
- Sukses (k) – Diwiwiti at 7.
Carane maca asile
- P(persis 7) – The headline answer. In the default example it reads 11.7188%.
- P(paling akeh 7) – Default Conto: 94.5313%.
- P(kurang saka 7) – Default Conto: 82.8125%.
- P(paling sithik 7) – Default Conto: 17.1875%.
- P(luwih saka 7) – Default Conto: 5.4687%.
- Sukses sing dikira – Default Conto: 5.
- Simpangan baku – Default Conto: 1.5811388.
Rumus
P(X = k) = nCk × p^k × (1 − p)^(n − k). Mean = np. Variance = np(1 − p).
Conto petungan
With the starting entries (Trials (n): 10, Chance of success each time: 50, Successes (k): 7), the calculator shows p(exactly 7) of 11.7188%. It also reports p(at most 7) 94.5313%; p(fewer than 7) 82.8125%; p(at least 7) 17.1875%; p(more than 7) 5.4687%.
Asumsi lan watesan
- Trials are independent with a constant probability.
Kesalahan umum
- Using it for draws without replacement from a small group.
- Mixing up exactly lan at most.
Pitakonan sing kerep ditakokake
Pira kemungkinan metu gambar 3 kali ing 5 lemparan?
31.25%.
Piranti sing gegandhengan
Rincian
- P(paling akeh 7)
- 94.5313%
- P(kurang saka 7)
- 82.8125%
- P(paling sithik 7)
- 17.1875%
- P(luwih saka 7)
- 5.4687%
- Sukses sing dikira
- 5
- Simpangan baku
- 1.5811388