The mean of 8 observation is 30if an observation 23 is deleted then the new mean is
Answers
Answered by
3
Answer:
31
Step-by-step explanation:
Mean = Sum of observations / No. of observations
Sum of observations = Mean * No. of observations
Mean of 8 observations = 30
=> Sum of 8 observations = 8*30 = 240
If on observation, 23, is deleted, then:
Sum of 7 observations = 240 - 23 = 231
=> Mean of 7 observations = 231/7 = 31
Answer: The new mean is 31
Answered by
0
Answer:
31
Step-by-step explanation:
Mean = Sum of observations / No. of observations
Sum of observations = Mean * No. of observations
Mean of 8 observations = 30
=> Sum of 8 observations = 8*30 = 240
If on observation, 23, is deleted, then:
Sum of 7 observations = 240 - 23 = 231
=> Mean of 7 observations = 231/7 = 31
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