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Choose the correct option.
Five numbers are randomly selected from the numbers and are arranged in the increasing order such…
Five numbers $x_1, x_2, x_3, x_4, x_5$ are randomly selected from the numbers $1, 2, 3, \dots, 18$ and are arranged in the increasing order such that $x_1 < x_2 < x_3 < x_4 < x_5$. What is the probability that $x_2 = 7$ and $x_4 = 11$? (Application)
- (a)$\frac{26}{51}$
- (b)$\frac{3}{104}$
- (c)$\frac{1}{68}$
- (d)$\frac{1}{34}$
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From ISC 2026 Specimen Mathematics Paper 1, question 1(v).