A simple random sample consists of five observation 2, 4, 7, 12, 15. The point estimate of the population mean is :
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 8
The point estimate of the population mean,
$\bar x=\frac{∑x_i}{n}$
$=\frac{2+4+7+12+15}{5}$
$=\frac{40}{5}=8$