Data set: 139 173 198 214 175 193 166 220 122 177 119 203 175 147 250 205 216 214 260 216 256 208 185 150 204 216 261 320 236 229 138 177 132 191 356 236 316 246 212 305 289 144 396 296 171 230 324 232 46 188 164 204 109 87 218 89 199 143 265 237   Find  frequency and relative frequency draw relative frequency  Use the empirical rule to estimate the percentages of observations that lie within one, two, and three standard deviations to either side of the Use the data to obtain the exact percentages of observations that lie within one, two, and three standard deviations to either side of the Compare your answers in parts (b) and (c)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Data set:

139

173

198

214

175

193

166

220

122

177

119

203

175

147

250

205

216

214

260

216

256

208

185

150

204

216

261

320

236

229

138

177

132

191

356

236

316

246

212

305

289

144

396

296

171

230

324

232

46

188

164

204

109

87

218

89

199

143

265

237

 

  1. Find  frequency and relative frequency
  2. draw relative frequency 
  3. Use the empirical rule to estimate the percentages of observations that lie within one, two, and three standard deviations to either side of the
  4. Use the data to obtain the exact percentages of observations that lie within one, two, and three standard deviations to either side of the
  5. Compare your answers in parts (b) and (c)
Expert Solution
Step 1

Introduction -

Relative frequency =current frequency total frequency 

Empirical rule -

68% of observations falls within the μ±σ

95% within the first two SD μ±2σ

99.7% with in the first 3SD μ±3σ

mean =sum of all observations total number of observationsStandard deviation =xi-x2N

 

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