1. The weight of materials (in kilograms) needed for 30 projects are as follows. Draw a frequency distribution of this data.

202 457 310 176 480 277 87 391 325 120 554 94 362 221 274 145 240 437 404 398 361 144

429 216 282 153 470 303 338 209

2. If you have a set of values, x, how would you describe the sum of the first 10?
3. How would you describe the sum of values numbered 10 to 35 is a set of data?
4. If you have the following set of data, p, what is the value of

i=18p

5 14 13 6 8 10 3 0 5 1 15 8 0