4. 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?

Answers (1)

(i) the probability of getting a number

=\frac{1}{10}=0.1

(ii) the numbers less than 6 are: 1,2,3,4,5=5 numbers.

    the probability of  getting a number less than 6 

=\frac{5}{10}=0.5

(iii) the numbers greater than 6 are: 7,8,9,10=4 numbers.

      the probability of  getting a number greater than 6

     =\frac{4}{10}=0.4

(iv) 1 digit numbers = 1,2,3,4,5,6,7,8,9 = 9 numbers

     the probability of  getting a 1 digit  number

=\frac{9}{10}=0.9

 

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