Astandard deck of 52 playing cards has 4 suits: diamonds, hearts, clubs, and spades. clubs and spades are black. diamonds and hearts are red. each suit has 13 13 cards (an ace, 2−10 , a jack, a queen, and a king). what is the probability of choosing a random card from the deck and getting a queen or a red 5 ? enter your answer as a fraction, in lowest terms, using the / symbol, like this: 42/53

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?