Explain why the t-distribution has less spread as the number of degrees of freedom increases.

The explanation is below;

Step-by-step explanation:

Spread in t-distribution decreases as sample size increases. As sample size increases, the t-distribution behaves more like standard normal distribution (the density curve of t-distribution gets closer to the standard normal density curve). As degrees of freedom increases, spread of t-distribution decreases because sample size increases sampling distribution of standard deviation becomes closer to sigma (population standard deviation) by the law of large numbers

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )

fd

step-by-step explanation: