Jim plotted the following ordered pairs on a coordinate grid. (1,3) (3,6) (7,6) (9,3) 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 Jim connected the points with line segments to form a polygon. Which point is located inside the polygon?​

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?