A simple random sample consists of six observations 12, 2, 1, 4, 2, 9. The point estimate of the population mean is :
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 5
Sample Mean, $\bar x=\frac{∑x_i}{n}$
$=\frac{12+2+1+4+2+9}{6}=5$