Cho chuỗi số ∑n=1+∞3n−15n có tổng riêng Sn=15+15.35+15.(35)2+...+15.(35)n−1 . Tổng của chuỗi số đã cho là:

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

At a pizza shop 70% of the customers order a pizza 25% of the customers order a salad and 15% of the customers order both a pizza and a salad if s customer is chosen at random what is the probability that he or she orders either a pizza or a salad