Answer: A. 1.2
Step-by-step explanation:
Given : Sample size : n= 64
Standard deviation:
The formula to find the standard error of mean is given by :-
Therefore, the standard error of the mean= 1.2
Hence, A is the right option.
Easyish PreCalculus; Find the exact values of the six trigonometric functions of the given angle. (you can use a calculator.) (D
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