The numbers of bags of crisps sold per day in a general shop was recorded over 13 days. The results are shown below.
32 45 36 56 45 68 29 48 21 45 32 47 59

In order from smallest to biggest, the results are:
21 39 32 32 36 45 45 45 47 48 56 59 68

The formula for finding out the quartiles didn’t work when I tried it.

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.