(D) [tex]\frac{3}{10} = 0.30[/tex]
Probability:
- The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true.
- An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty. The likelihood that an event will occur increases with its probability.
- A straightforward illustration is tossing a fair (impartial) coin.
- The coin is fair, thus the outcomes "heads" and "tails" are equally likely; the likelihood of "heads" is equal to the likelihood of "tails"; and because there are no other conceivable outcomes, the likelihood of either "heads" or "tails" is 1/2 (which is also an acceptable as 0.5 pr 50%).
Solution -
Total number or students = denominator = [tex]10[/tex]
3 choices ( karate, chess or neither ) = numerator = [tex]3[/tex]
[tex]\frac{3}{10} = 0.30[/tex]
Therefore, [tex]P\frac{A}{B} = \frac{3}{10} = 0.30[/tex].
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