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221. Two coins are tossed once simultaneously, find the probability write the elements of the sample space.

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222.

Two coins are tossed once. Find the probability of getting:
(i) Exactly one head.
(ii) At most one head.

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223.

“Three unbiased” coins are tossed together. Find the probability of getting :

(i) One head.
(ii) All heads.

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224.

Three unbiased coins are tossed together. Find the probability of getting :
(i) Two heads.
(ii) At least two heads.

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225. Three coins are tossed together. Find the probability of getting at least one head and one tail.

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Solution not provided.

Ans. $3 over 8$

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227.

An unbiased die is thrown once. Find the probability of getting
(i) an even number and a multiple of 3. (ii) an even number or a multiple of 3.

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228.

An unbiased die is thrown once. Find the probability of getting:
(i) a multiple of 2 or 3.
(ii) 2 or 4.

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229. A die is thrown once. What is the probabilty of getting a number 5 or 6.

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230. An unbiased die is thrown once. Find the probability of getting seven.

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