Target Exam

CUET

Subject

-- Applied Mathematics - Section B2

Chapter

Inferential Statistics

Question:

The marks obtained by five students in a test of Applied Mathematics carrying 100 marks are 49, 58, 67, 92, 99. Then the point estimate of the population mean is

Options:

73

69

67

91.25

Correct Answer:

73

Explanation:

The correct answer is Option (1) → 73 **

Data: $49,\;58,\;67,\;92,\;99$

Point estimate of population mean = sample mean.

$\displaystyle \bar{x}=\frac{49+58+67+92+99}{5}$

$49+58=107$

$107+67=174$

$174+92=266$

$266+99=365$

$\displaystyle \bar{x}=\frac{365}{5}=73$

Point estimate of population mean = 73