12th Class Statistics MCQ Test With Answer for Statistics Full Book

The normal distribution is a _______.

• Positive A
• Negative B
• Discrete C
• Continuous D

• 37 A
• 132 B
• 32 C
• cannot be calculated D

Which output is permanent ?

• hard copy A
• real copy B
• soft copy C
• none of these D

Data is defined as combination of

• character and numbers A
• characters and symbols B
• numbers and symbols C
• characters, number and symbols D

The estimated regression line always passes through

• origin A
• 
  B
• x-axis C
• y-axis D

In the measurement of secular trend the moving averages

• give the trend in a straight line A
• measure the seasonal variations B
• smoothes out a time series C
• measure irregular fluctuations D

For a least squares linear trend ŷ = a + bx, the Σ(y-ŷ)² = 0 when

• all the y-values lie on the line A
• all the y-values are positive B
• all the y-+values lie above the line C
• none of these D

Total probability under the normal curve is

• 1 A
• 0 B
• -1 C
• ∞ D

The hypothesis which is tested for possible rejection is called

• common hypothesis A
• null hypothesis B
• alternative hypothesis C
• wrong hypothesis D

An example in a two-sided, alternative hypothesis is:

• H₁ :u < 0 A
• H₁ : u > 0 B
• H₁ L u > 0 C
• H₁ : u ≠ 0 D

If sampling is done with replacement the σ_p =

• 
  A
• 
  B
• 
  C
• 
  D

In case of normal distribution maximum value of ordinate is

• μ A
• Zero B
• 
  C
• 
  D

The most common type of computer memory is called:

• ALU A
• ENIAC B
• RAM C
• ROM D

In a straight line equation Y = a + bX; a is the:

• X - intercept A
• Slope B
• Y- intercept C
• None of them D

A population is called _______ if it includes an unlimited number of sampling units.

• Finite A
• Infinite B
• Statistic C
• None of these D

The sum of deviations=Σ(y-ŷ) =

• 0 A
• 1 B
• 10 C
• -1 D

In a normal distribution β₁ = 0 and β₂ = __________.

• 2 A
• 4 B
• 3 C
• 5 D