Mark weighed 150 pounds at the beginning of the month. He stopped eating fast food and started running again. At the end of the month he weighed 142 pounds. What was the percent decrease? *Round to one decimal place

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?

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if

Abag contains 10 white golf balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio of white to striped gold balls to remain the same. how many of each should he add?