Answer:
Using the information presented in the table, the 1st decile can be calculated as:
1. = Value of [(30 + 1) / 10]th data.
2. = Value of 3.1st data, which is 0.1 of the way between scores 55 and 57.
3. = 55 + 2 (0.1) = 55.2 = D1.
4. D1 means that 10% of the data set falls below 55.2
Step-by-step explanation:
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