Respuesta :
The standard deviation is a measure of how a dataset is close to the mean.
The statement that is most likely true is (b) the scores from Mrs. Rijo's class are the closest to the class mean
The table entry is given as:
Class        Mean  Standard Deviation
Mrs. Jones    89       1.9
Mrs. Rijo      82       1.4
Mr. Phan     73        3.4
Mrs. Scott    90       6.1
The smaller the standard deviation, the closer the value to the mean
From the above table, we can see that Mrs. Rijo's class has the smallest standard deviation value.
Hence, the statement that is most likely true is (b) the scores from Mrs. Rijo's class are the closest to the class mean
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