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प्रश्न
A child has a die whose six faces shows the letters as given below:
\[\boxed{\text{A}}\]\[\boxed{\text{B}}\]\[\boxed{\text{C}}\]\[\boxed{\text{D}}\]\[\boxed{\text{E}}\]\[\boxed{\text{A}}\]
The die is thrown once. What is the probability of getting (i) A? (ii) D?
A child has a die whose six faces shows the letters as shown below:
\[\boxed{\text{A}}\]\[\boxed{\text{B}}\]\[\boxed{\text{C}}\]\[\boxed{\text{D}}\]\[\boxed{\text{E}}\]\[\boxed{\text{A}}\]
The die is thrown once. What is the probability of getting (i) A? (ii) D?
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उत्तर १
Total number of possible outcomes on the dice = 6
(i) Total number of faces having A on it = 2
`"Number of favourable outcomes"/"Total number of possible outcomes" = 2/6 = 1/3`
P (getting A) = `2/6 = 1/3`
(ii) Total number of faces having D on it = 1
Number of favourable outcomes = 1
`"Number of favourable outcomes"/"Total number of possible outcomes"= 1/6`
P (getting D) = `1/6`
उत्तर २
Total possible outcomes, n(S) = 6
(i) Let E1 = getting event letter A, then n(E1) = 2
∴ Probability = `(n(E_1))/(n(S))`
= `2/6`
= `1/3`
(ii) Let E2 = getting event letter D, then n(E2) = 1
∴ Probability = `(n(E_2))/(n(S))`
= `1/6`
Notes
Students should refer to the answer according to their questions.
