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

The descriptive measure on the sample observation is called ------------------

• parameter A
• statistic B
• error C
• true value D

If we reject Ho when Ho is actually true then it is

• type - I error A
• type - II error B
• type - III error C
• type - IV error D

r is the ------------ of two regression co-efficient b_yx and b_xy

• arithmetic mean A
• geometric mean B
• harmonic mean C
• median D

Second moment about mean is also called

• mean A
• variance B
• skewness C
• standard deviation D

Arithmetic operations are carried out by ---------------- unit

• logical A
• inner B
• ALU C
• other D

List of all the units of the population is called______.

• Random sampling A
• Bias B
• Sampling frame C
• Probability sampling D

1 kb = _____________ bytes

• 10 A
• 100 B
• 1000 C
• 10,000 D

The two attributes A and B are ________associated, If (AB) < (A)(B)/n.

• Positively A
• Negatively B
• Zero C
• Symmetrical D

Small sample has less than

• 50 values A
• 45 values B
• 30 values C
• 35 values D

Arithmetic operations are carried out by_______ units:

• CPU A
• RAM B
• ALU C
• ROM D

• 
  A
• b_yx B
• b_xy C
• S_p D

If sampling is done without replacement then=σ =

• 
  A
• 
  B
• 
  C
• 
  D

If population proportion (P) is unknown, the standard error of the sample proportion (p) can be estimated by the formula

• 
  A
• 
  B
• 
  C
• 
  D

Statistical inference has two branches namely:

• Level of confidence and degrees of freedom A
• Biased estimator and unbiased estimator B
• Point estimate and interval estimate C
• Estimation of parameter and testing of hypothesis D

An automobile is driven on the average on more than 1600 kilometers per year, the null hypothesis is

• H_o : μ = 16000 kilometers A
• H_o : μ ≤  16000 kilometers B
• H_o : μ < 16000 kilometers C
• H_o : μ > 16000 kilometers D

Statistic is an estimator and its calculated value is called:

• Biased estimate A
• Estimation B
• Interval estimate C
• Estimate D

The ___________ allow you to type information into the computer.

• Mouse A
• Scanner B
• Printer C
• Keyboard D