The following box plot shows the number of books sold each day at a bookstore for 40 days. how many days did the bookstore sell 2 to 12 books? a box plot is drawn with end points at 0 and 16. the box extends from 2 to 12 and a vertical line is drawn inside the box at 7.
(a) 10
(b) 15
(c) 30
(d) 45

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Math question.. plz me .. best answer all

The approximate line of best fit for the given data points, y = −2x − 2, is shown on the graph. which is the residual value when x = –2? a)–2 b)–1 c)1 d)2