Question

Mean of 5 observations was find to be 54. If one more observation 30 was added to the data what would be the new mean of data​

Answer 1

Answer:

Step-by-step explanation:

Mean of 10 observations = 28

Total of 10 observations = 280 [incorrect total]

Correct total = 280 + 14 - 24 = 280 - 10 = 270

The correct mean = 270/10 = 27

Answer 2

Answer:

50

Step-by-step explanation:

Mean of 5 observation = 54

sum of 5 observation = 54 × 5

= 270

If one more observation 30 was added ,then

= 270 + 30

= 300

New mean = 300/6

=50

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