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ICSE Class 10 Answered

A letter is chosen at random from EXAMINATION.  Find the probability i) that it is not in EDUCATION. ii) that it is in EDUCATION.  
Asked by meera.singh2326 | 13 Aug, 2020, 08:22: AM
answered-by-expert Expert Answer
Letters of the word EXAMINATION which are not in the word EDUCATION are X and M.
Letters which are common in the words EXAMINATION and EDUCATION are E, A, T, I, O and N
(i)
Probability of choosing a letter from EXAMINATION that is not in the word EDUCATION = n({X, M})/Total no. of letters = 2/11
(ii)
Probability of choosing a letter from EXAMINATION that is in the word EDUCATION = n({E, A, T, I, O, N})/Total no. of letters = 6/11
Answered by Renu Varma | 13 Aug, 2020, 10:42: AM

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