Buzz LTD manufactures batteries for electronic games. Thirty randomly selected batteries have a lifespan, in minutes, 200 203 206 211 245 233 234 256 223 224 240 229 228 215 201 210 211 243 200 201 203 239 222 231 211 215 216 217 227 229 (a) Find the mode of the observations. (b) Find the quartiles of the observations. (c) Calculate the mean of the observations.

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Q: 4. Find mean value of the given data. Scores Frequency (f) 41-45 36-40 8 31-35 26-30 14 21-25 16-20

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A: x (x-xbar)^2 70 16900 100 10000 135 4225 175 625 185 225 190 100 205 25 210 100…

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A: Solution: Mean: Let X be the number of points scored by player A.

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Q: The weekly salaries, in dollars, of 10 government workers are listed below. 495 666 517 672 630 686…

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