There are six people in the fisher family. olivia and marcus are the parents. neither olivia nor marcus have freckles, a dominant trait. they have four children: violet, nathan, jonas, and claudia. what is the probability that each child has of inheriting freckles?

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .