The approximate standard error of the mean for a sample size of 300 will be option D. 0.46.
Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.
Here the approximate standard error will be calculated by dividing the standard deviation from the square root of the sample size
Approximate standard error = 7.89/√300=0.455555=0.46
Hence the approximate standard error of the mean for a sample size of 300 will be option D. 0.46.
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