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24 July, 20:20

A coin is tossed, then a number 1-10 is chosen at random. what is the probability of getting heads then a number less than 4?

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  1. 24 July, 20:33
    0
    Probability of sequences can be calculated by multiplying the chance of the first event by the chance of the second, and so on.

    The probability of tossing a coin and getting heads is 50%, or 0.5, and the probability of selecting a number less than four from 1-10 is 40%, or 0.4.

    The overall probability can then be expressed as:

    0.5 x 0.4 = 0.2 or 20%

    There is a twenty percent chance that a heads would be tossed and a number less than four selected.
  2. 24 July, 20:40
    0
    Well, there is a 1 in 10 (10%) chance of getting any number:

    There are three numbers less than 4:

    There is a 30% chance.
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