Final answer:
The subject of this question is Mathematics. It involves probability and combinatorics. The question is asking about the probability of choosing 5 different numbers from the first 90 positive integers in a lottery.
Step-by-step explanation:
The subject of this question is Mathematics. It involves probability and combinatorics.
The question is asking about the probability of choosing 5 different numbers from the first 90 positive integers in a lottery.
The probability can be calculated using the formula P(choosing all five numbers correctly) = P(choosing 1st number correctly) × P(choosing 2nd number correctly) × P(choosing 3rd number correctly) × P(choosing 4th number correctly) × P(choosing 5th number correctly), where each probability is calculated based on the total number of possible outcomes and the number of favorable outcomes in each step.