An integer number is chosen at random from the first 100 integers. What is the probability that the chosen number is a perfect cube?
An integer number is chosen at random from the first 100 integers. What is the probability that the chosen number is a perfect cube?
Solution
✅ Correct Option: 4
The first 100 integers are: 1, 2, 3, 4, ..., 100
Total integers = 100
A perfect cube is a number that can be expressed as where is an integer.
The perfect cubes from 1 to 100:
(exceeds 100)
Perfect cubes from 1 to 100: {1, 8, 27, 64}
Total perfect cubes = 4
Probability =
Probability =
Probability =
Therefore, the probability that a randomly chosen number from the first 100 integers is a perfect cube is .
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