Hodisaning ehtimolligi — 9-sinf Algebra test savollari

1.Sonli kub tashlanganda "asosiy son (2, 3 yoki 5) tushishi" hodisasining ehtimolligini toping.

• A)$\frac{1}{2}$
• B)$\frac{1}{3}$
• C)$\frac{1}{6}$
• D)$\frac{2}{3}$

2.Qutida 4 ta qizil va 6 ta ko'k shar bor. Tavakkaliga olingan sharning qizil bo'lish ehtimolligini toping.

• A)$\frac{2}{5}$
• B)$\frac{3}{5}$
• C)$\frac{1}{2}$
• D)$\frac{2}{3}$

3.Ikkita tanga tashlanganda "ikkalasida ham gerb tushishi" hodisasining ehtimolligini toping.

• A)$\frac{1}{4}$
• B)$\frac{1}{2}$
• C)$\frac{1}{3}$
• D)$\frac{3}{4}$

4.1 dan 20 gacha sonlar ichidan tasodifiy tanlangan sonning 3 ga bo'linish ehtimolligini toping.

• A)$\frac{3}{10}$
• B)$\frac{1}{3}$
• C)$\frac{2}{5}$
• D)$\frac{3}{20}$

5.Qutida 3 ta oq, 5 ta qora shar bor. Qaytarmasdan ketma-ket ikkita shar olinganda, ikkalasi ham oq bo'lish ehtimolligini toping.

• A)$\frac{3}{28}$
• B)$\frac{9}{64}$
• C)$\frac{3}{16}$
• D)$\frac{3}{8}$

6.Klassik ehtimollik formulasini ko'rsating.

• A)$P\left(A\right)=\frac{m}{n}$, bunda m — qulay natijalar soni, n — barcha natijalar soni
• B)$P\left(A\right)=\frac{n}{m}$
• C)P(A) = m + n
• D)P(A) = m - n

7.Muqarrar hodisaning ehtimolligi nechaga teng?

• A)1
• B)0
• C)0,5
• D)aniqlanmagan

8.Mumkin bo'lmagan hodisaning ehtimolligi nechaga teng?

• A)0
• B)1
• C)0,5
• D)aniqlanmagan

9.Har qanday hodisaning ehtimolligi qanday oraliqda bo'ladi?

• A)0 ≤ P(A) ≤ 1
• B)-1 ≤ P(A) ≤ 1
• C)P(A) ≥ 1
• D)P(A) ≤ 0

10.Sonli kub tashlanganda "6 dan katta son tushishi" hodisasining ehtimolligini toping.

• A)0
• B)1
• C)$\frac{1}{6}$
• D)$\frac{5}{6}$