Mr. hauseman has 17 students in his class, three of which are freshman and the others are sophomores and juniors. he is going to randomly draw two students to be partners. he calculates the probability of drawing first a freshman and then a sophomore to be
3
34
. how many sophomores are in the class?

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?