Problem (i): The mean and the SD of the sample are respectively 54.5 and 8; the mean and the SD of another sample are 50.3 and 7 respectively. The size of the first sample is 50 and that of the second...

Problem (i): The mean and the SD of the<br>sample are respectively 54.5 and 8; the mean<br>and the SD of another sample are 50.3 and 7<br>respectively. The size of the first sample is 50<br>and that of the second is 100. Find the mean<br>and SD of the composite sample combining<br>the aforesaid two samples.<br>

Extracted text: Problem (i): The mean and the SD of the sample are respectively 54.5 and 8; the mean and the SD of another sample are 50.3 and 7 respectively. The size of the first sample is 50 and that of the second is 100. Find the mean and SD of the composite sample combining the aforesaid two samples.

Jun 11, 2022

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Problem (i): The mean and the SD of the sample are respectively 54.5 and 8; the mean and the SD of another sample are 50.3 and 7 respectively. The size of the first sample is 50 and that of the second...

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