Final answer:
To find the probability that more than 99 out of 157 software users will not call technical support, we can use the binomial distribution and calculate P(X > 99).
Step-by-step explanation:
To find the probability that more than 99 out of 157 software users will not call technical support, we can use the binomial distribution. The probability that a given software user will not call technical support is 56%, which means the probability that they will call technical support is 44%. We can use the binomial probability formula to calculate the probability of getting more than 99 out of 157 users not calling technical support.
Let X be the number of users not calling technical support. We want to find P(X > 99).
Using the binomial probability formula, we calculate:
P(X > 99) = 1 - P(X <= 99)
We can use a binomial calculator or table to find the cumulative probability for X <= 99. Once we have that value, we subtract it from 1 to find P(X > 99).