A sample of 30 of 178 funded projects revealed that 12 were valued at $17,360 each and 18 were valued at $20,280 each. From the sample data, estimate the total value of the funding for all the projects. (Enter your answers to two decimal places.)

$ 35.60

2 answers

If the values are in the tens of thousands of dollars, how do you get a total value of $35.60?
I really don't know but this is the way I did it.
12+18=30
12/30=.4
.4x178=71.2

then
12+18=30
18/30=.6
.6x178=106.8
71.2-106.8 = 35.60

I tried to work it