Stop-One.com, a large Internet retailer, is studying the lead time (elapsed time between when an order is placed and when it is filled) for a sample of recent orders. The lead times are reported in days.

Lead Time (days)Frequency0 to under2(Frequency4)2 to under 4(Frequency10)4 to under 6(Frequency15)6 to under 8(Frequency12)8 to under 10(Frequency3)

Total44

1.how many orders were studied?

2.what is the mid point of the second class?

3.what are the coordinates of the first class for a frequency polygon assuming we draw a frequency polygon using the midpoints?

x= Y=

4.interpret the lead times

Most orders take around ______days?