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

A sample is usually selected by_______.

• With A
• Without B
• Finite C
• Infinite 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

Sum of squares of residuals is denoted by

• ∑e A
• ∑e² B
• ∑e³ C
• ∑e⁴ D

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

If (AB) = (A)(B)/n, the two attributes. A and B are _________.

• Independent A
• Dependent B
• Correlated C
• Quantitative D

A characteristic which varies in quality form one individual to another is called

• variable A
• constant B
• attribute C
• none of these D

Total probability under the normal curve is

• 1 A
• 0 B
• -1 C
• ∞ D

The sum of deviations=Σ(y-ŷ) =

• 0 A
• 1 B
• 10 C
• -1 D

The bias increases by increasing the sample_______.

• Unit A
• Number B
• Size C
• None of these D

Which hypothesis is always in an inequality form?

• Simple hypothesis A
• Alternative hypothesis B
• Null hypothesis C
• Composite hypothesis D

A descriptive measure of a population is called

• sample A
• statistic B
• parameter C
• erro D

If r = -1, then there is

• negative correlation A
• perfect negative correlation B
• no correlation C
• average correlation D

The maximum ordinance of the standard normal Curve is at Z = ______.

• 1.96 A
• 2.33 B
• 1 C
• 0 D

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

The Quartile deviation (Q.D) of a normal distribution is_______.

• 4/5 σ A
• 5/4 σ B
• 2/3 σ C
• None of these D

Random sampling provides reliable -------------------

• values A
• attributes B
• variables C
• estimates D

The S.D of the sampling distribution of a statistics is called _______.

• Standard error A
• Serious error B
• Dispersion C
• Difference D