For question 2, refer to the sheet (Tab) in this excel workbook labeled "Data-Heavy metal concentration," containing the concentrations of cadmium in water collected from the soil in the sun stalk forest (sample size = 20 water samples). Use excel for calculations. Find frequency and the bins are 80-120, 120-160, 160-200, 200-240, 240-280, 280-320, 320-360, 360-400, 400-440, 440-480, 480-520, 520+ Refer to the lab packet document for specific excel formatting instructions. concentrations of Cd (mg L -1)

144

511

110

399

363

224

225

199

185

191

208

250

277

251

277

312

294

282

287

282