Solution-Sample mean and sample standard deviation of the

Sample mean and sample standard deviation of the data

Reference no: EM132474353

(Show your calculation steps clearly. Correct you answer to 4 decimal places and report the measurement unit when applicable)

Question 1: The household expenditure (HK$) of 12 sampled families with 4 members in Hong Kong in September 2019 were as follows:

                  8095     6745     4427     2192     4697     7549
                  4302     4209     3520     7621     2757     6441

Find the sample mean and sample standard deviation of the data.
Find the inter-quartile range of the data.
Find the 15th percentile and 85th percentile of the data.
Use the sampled data as reference, what is the probability that the household expenditure of a family with
4 members in Hong Kong in September 2019 was more than $5000?
Use X to denote the household expenditure in a month and Y to denote the household saving in a month.
Assume Y = 6200 - 0.4X. Find the mean, standard deviation and the variance of variable Y in this sample.

Reference no: EM132474353

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Sample mean and sample standard deviation of the data

Reference no: EM132474353

Reference no: EM132474353

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