The mean absolute deviation of 25, 30, 27, 40 and 35 is:
4.88
The mean absolute deviation (MAD) is calculated by taking the absolute differences from the mean, and then averaging those differences.
Mean of the numbers = (25 + 30 + 27 + 40 + 35) / 5 = 31.4
Absolute deviations: |25 - 31.4| = 6.4, |30 - 31.4| = 1.4, |27 - 31.4| = 4.4, |40 - 31.4| = 8.6, |35 - 31.4| = 3.6
MAD = (6.4 + 1.4 + 4.4 + 8.6 + 3.6) / 5 = 4.88
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Important Questions from Sample
Which of the following are correct about Questionnaire?
(a) In open ended question, specific responses are taken through ranking, scaled items and categorical responses.
(b) In ranking, respondent place the response in a rank order according to some criteria.
(c) In scaled item, respondent indicate the strength of their agreement only.
(d) In categorical response, respondent are given only two responses such as 'yes' or 'no'.
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A. Choose between probability and nonprobability sampling
B. Specify sampling unit
C. Validate sample
D. Determine the necessary sample size
E.Select appropriate sampling frame
Choose the correct answer from the options given below:
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