Q 10.Numbers 1 to 10 are written on ten separate slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking into it. What is the probability of getting a 1-digit number?Q 10.Numbers 1 to 10 are written on ten separate slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking into it. What is the probability of getting a 1-digit number?
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Numbers 1 to 10 are written on ten separate slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking into it. What is the probability of?
(i) getting a number 6?
(ii) getting a number less than 6?
(iii) getting a number greater than 6?
(iv) getting a 1-digit number?
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ANSWER
(i) Total slips: 10
Probability of getting a number 6⇒101
(ii) Numbers less than 6:1,2,3,4,5
Probability ⇒105=21
(iii) Number greater than 6 are 7,8,9,10
Probability ⇒6⇒104=52
(iv) Single digit: 1,2,3,4,5,6,7,8,9
Probability =109
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