An experiment with fruit flies involves one parent with normal wings and one parent with vestigial wings. When these parents have an offspring, there is 3/4 a probability that the offspring has normal wings and 1/4 a probability of vestigial wings. If the parents give birth to 10 offspring, what is the probability that at least 1 of the offspring has vestigial wings? If researchers need at least one offspring with vestigial wings, can they be reasonably confident of getting one?