Using the accompanying table of data, blood platelet counts of women have a bell-shaped distribution with a mean of

255.0

and a standard deviation of

65.3.

(All units are 1000

cells/L.)

Using Chebyshev's theorem, what is known about the percentage of women with platelet counts that are within

2

standard

deviations

of the mean? What are the minimum and maximum possible platelet counts that are within

2

standard

deviations

of the mean?

321 298 287 262 215 249 384 217 503 348 327 189 243 251 185 392 195 233 230 214 221 170 339 239 274 253 577 157 186 248 394 217 239 197 202 204 227 219 182 252 316 214 243 172 314 338 246 212 240 224 373 235 229 308 309 229 371 187 241 289 228 177 261 327 184 185 293 228 288 240 215 263 206 185 246 307 254 236 207 264 225 214 255 171 360 168 320 171 296 269 163 167 380 218 283 337 243 223 255 262 231 390 239 236 233 272 261 247 274 279 331 244 327 298 204 197 175 329 210 227 261 256 280 232 224 257 220 183 320 261 211 233 249 207 238 254 301 275 395 181 306 232 191 237 133 244 292

Question content area bottom

Part 1

Using Chebyshev's theorem, what is known about the percentage of women with platelet counts that are within

2

standard

deviations

of the mean?

At least

enter your response here%

of women have platelet counts within

2

standard

deviations

of the mean.

(Round to the nearest integer as needed.)