A sample of 8 random families' overall monthly water usage bill (in taka) is as follows: 187 310 280 278 295 325 355 167 a. Determine the mean monthly consumption of water. Answer in exact fraction, or rounded to at least 4 decimal places b. Find the variance in the monthlly consumption of water. Answer in exact fraction, or rounded to at least 4 decimal places

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A sample of 8 random families' overall monthly water usage bill (in taka) is as follows:
187
310
280
278
295
325
355
167
a. Determine the mean monthly consumption of water.
Answer in exact fraction, or rounded to at least 4 decimal places
b. Find the variance in the monthly consumption of water.
Answer in exact fraction, or rounded to at least 4 decimal places
Transcribed Image Text:A sample of 8 random families' overall monthly water usage bill (in taka) is as follows: 187 310 280 278 295 325 355 167 a. Determine the mean monthly consumption of water. Answer in exact fraction, or rounded to at least 4 decimal places b. Find the variance in the monthly consumption of water. Answer in exact fraction, or rounded to at least 4 decimal places
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