It depends on the spinner: how many sides it has, whether or not they are the same size, what numbers are on the spinner.
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1/2
For a die it is 1/3. For anything else (a spinner, for example), there is not enough information.For a die it is 1/3. For anything else (a spinner, for example), there is not enough information.For a die it is 1/3. For anything else (a spinner, for example), there is not enough information.For a die it is 1/3. For anything else (a spinner, for example), there is not enough information.
The probability of rolling an even number on a die is 3 in 6 or 1 in 2. The probability of rolling a prime on a die is 3 in 6 or 1 in 2, but one of those primes is also even. Simply add the probabilities and you find that the probability of rolling an even number or a prime on a die is 5 in 6.
when rolling a number cube when rolling a number cube what is the probability of rolling an even number or a divisor of 10? rolling an even number or a divisor of 10?
Even probability: 3/6= 1/2 Odd probability: 3/6= 1/2 (a cube has six sides and normally is numbered 1-6)