Need help to solve homework problem from 6.6 Triola stats. Please provide explanation and steps using TI-84 calc:

Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 126 eligible voters aged 18-24 are randomly selected. Suppose a previous study showed that among eligible voters aged 18-24, 22% of them voted.

Probability that exactly31 voted

The probability that exactly 31 of 126 eligible voters voted is____

(Round to four decimal places as needed.)