Question

The average of 9 observations is 16. One more observation is included and the new mean
becomes 17. The 10th observation is?
(a) 9
(b) 16
(c) 26
(d) 30​

Answer 1

Answer:

Mean of ten observations – Mean if nine observations = Tenth observation

= 10 \times 17 – 16 \times 9

= 170 – 144 = 26

Hence option [C] is correct answer.

Answer 2

Answer:

26

Step-by-step explanation:

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