To review for the final, Jeffrey did 7 random problems from each assignment in his class. Each assignment had an equal number of problems. Is this sample of the problems assigned in the class likely to be biased? yes no

## Step 1<br />The problem is about the concept of bias in statistics. Bias refers to a systematic error that can skew the results of a study or survey. In this case, Jeffrey is reviewing for his final exam by doing 7 random problems from each assignment in his class. The question asks whether this method is likely to introduce bias in his review.<br /><br />## Step 2<br />Bias can occur in various ways, such as through the selection of participants, the collection of data, or the interpretation of results. In this case, Jeffrey is selecting problems randomly from each assignment, which means he is not favoring any particular type of problem or assignment.<br /><br />## Step 3<br />The fact that each assignment has an equal number of problems also suggests that Jeffrey is not favoring any particular assignment over others. Therefore, his method of reviewing problems is unlikely to introduce bias.