9th Standard English Medium Maths Subject Probability Book Back 3 Mark Questions with Solution

9th Standard

    Reg.No. :
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Maths

Time : 01:00:00 Hrs
Total Marks : 15

    3 Marks

    5 x 3 = 15
  1. When a dice is rolled, find the probability to get the number greater than 4?

  2. In an office, where 42 staff members work, 7 staff members use cars, 20 staff members use two-wheelers and the remaining 15 staff members use cycles. Find the relative frequencies.

  3. Team I and Team II play 10 cricket matches each of 20 overs. Their total scores in each match are tabulated in the table as follows:

    Match numbers 1 2 3 4 5 6 7 8 9 10
    Team I 200 122 111 88 156 184 99 199 121 156
    Team II 143 123 156 92 164 72 100 201 98 157

    What is the relative frequency of Team I winning?

  4. The probability that it will rain tomorrow is \(\\ \frac { 91 }{ 100 } \). What is the probability that it will not rain tomorrow?

  5. In a recent year, of the 1184 centum scorers in various subjects in tenth standard public exams, 233 were in mathematics. 125 in social science and 106 in science. If one of the student is selected at random, find the probability of that selected student,
    (i) is a centum scorer in Mathematics
    (ii) is not a centum scorer in Science

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