Answers

2016-03-13T20:36:10+05:30
No . of Obs = 7
Mean = Sum. of Obs / No . of Obs
14 = (11 + 15 + 17 + y + 1 + 19 + y - 2 + 3) / 7
14 * 7 = 63 + 2y
98 = 63 + 2y
98 - 63 = 2y
35 = 2y
y = 17.5

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2 5 2
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Brainliest means this answer you think as the best