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

The degree of confidence is equal to:

• β A
• 1 - β B
• 1 - α C
• α D

The critical region of=χ2distribution is

• χ2 <χ2v; 1-α A
• χ2 <χ2v;1-α B
• χ2 <χ2 v;1-α/2 C
• χ2 <χ2v;1-α/2 D

The normal distribution is a bell shaped_______ distribution.

• Discrete A
• Continuous B
• Symmetrical C
• Skewed D

C= ------------------------------

• 
  A
• 
  B
• 
  C
• 
  D

The _______ regression line always passes through (X̅, y̅).

• Opposite A
• Estimated B
• Estimates C
• Random D

The moment Coefficient of kurtosis is

• β₁ A
• β₂ B
• Zero C
• m₂ D

CD-ROM is a type of _________.

• Optical disk A
• Hard disk B
• Soft disk C
• Compact disk D

A high speed memory that is built in processor is called

• built in memory A
• cache memory B
• internal memory C
• external memory D

If two attributes A and B have perfect positive association value of the coefficient of association is equal to _______.

• +1 A
• -1 B
• 0 C
• (r-1)(c-1) 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 estimates of the parameters=α and=β are

• μ and=σ2 A
• a and b B
• μ andπ C
• χ2 and Z D

1MB equals

• 1048576 bytes A
• 1024 bytes B
• 2048 bytes C
• 2380 bytes D

The basic components of a time series are:

• 2 A
• 3 B
• 4 C
• 5 D

• best estimators A
• biased estimators B
• unbiased estimators C
• normal estimators D

100(1-α)% confidence interval for population proportion of success,&=nbsp;π is

• P (L <μ < U) = 1 - α A
• P (L <σ < U) = 1 - α B
• P (L <π< U) = 1 - α C
• P (L <P&=nbsp;< U) = 1 - α D

Super computers can perform more than ---------------- calculations per second ?

• 1 million A
• 1 billion B
• 1 trillion C
• 1 lac D

Confidence intervals which are often used in practice are

• 90% A
• 95% B
• 98% C
• all of these D