Conditional Probability
Bayani Gaba-gaba
Sometimes one event changes the chance of another. If you draw a counter from a bag and keep it, the next draw is from a smaller bag, so the probabilities shift. Conditional probability is the mathematics of these knock-on effects: the probability of one event given that another has already happened.
In this Extended topic you will work with conditional probability using tables, Venn diagrams and tree diagrams. The classic setting is drawing objects without replacement, where each draw alters what remains. Once you see how the branch probabilities change after the first event, problems that look hard become a tidy multiplication along a path.
Manufura
- Calculate conditional probability using Venn diagrams, tree diagrams and tables.
Takardar Darasi
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Nazarin Darasi
Barka da kammala darasi akan Conditional Probability. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- A bag has 5 red and 3 blue counters. Two are drawn without replacement. What is P(both red)? A. 25/64 B. 20/56 C. 5/8 D. 4/7 Answer: B
- After drawing one red from a bag of 5 red and 3 blue (kept out), what is the probability the next is red? A. 5/8 B. 5/7 C. 4/7 D. 4/8 Answer: C
- Of 18 French students, 12 also study Spanish. A French student is chosen. What is P(studies Spanish)? A. 1/3 B. 2/5 C. 2/3 D. 12/30 Answer: C
- Which rule gives the probability of A and B in general? A. P(A) + P(B) B. P(A) x P(B given A) C. P(A) - P(B) D. P(A) / P(B) Answer: B
- A bag has 4 white and 2 black balls. Two are drawn without replacement. What is P(both white)? A. 4/9 B. 2/5 C. 1/3 D. 12/30 Answer: B
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
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