The probability of picking an odd prime number is . The probability of picking a number greater than 0 that is also a perfect square is
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we know that
total blocks=10
total odd prime numbers------> 3,5,7------> 3 numbers
so
Part 1
The probability of picking an odd prime number is
Part 2
total blocks=10
total numbers greater than zero also a perfect square ------>1,4,9---> 3 numbers
so
The probability is