Chapter 11 - Sequences; Induction; the Binomial Theorem - Section 11.5 The Binomial Theorem - 11.5 Assess Your Understanding - Page 856: 1

$\text{Pascal's Triangle}$

A Pascal's Triangle can be defined as a triangle that shows the binomial coefficients $\dbinom{n}{p}$ in each row. See the example on page 853 of the textbook. Therefore, the missing word in the given statement is: $\text{Pascal's Triangle}$.