2nd Year Statistics Chapter 15 Online MCQ Test for 12th Class Statistics Chapter 15 (Association)

Chi-square curve ranges from:

• -∞ to +∞ A
• 0 to ∞ B
• -∞ to 0 C
• 0 to 1 D

• Φ² A
• q² B
• α² C
• β² D

The process of dividing the objects into two mutually exclusive classes is called_______

• Bichotomy A
• Trichotomy B
• Dichotomy C
• Multichotomy D

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

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

The value of chi-square statistic is always _______.

• Negative A
• Non-negative B
• Zero C
• One D

• independent A
• positively associated B
• negatively associated C
• correlated D

The two attributes A and B are negatively associated if

• 
  A
• 
  B
• 
  C
• 
  D

A characteristic which varies in quality from one individual to another is called an_______.

• Variable A
• Attribute B
• Associated C
• Independent D

For an r x c contingency table, the number of degrees of freedom are equal to:

• rc A
• r + c B
• (r-1)+(c-1) C
• (r-1)(c-1) D

A characteristic which varies in quantity from one individual to another is called a________.

• Association A
• Correlation B
• Variable C
• Attribute D

(AB), (Aβ), (αB), (αβ) are called

• positive class frequencies A
• negative class frequencies B
• natural class frequencies C
• ultimate class frequencies D

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

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

• 6Σd₁ A
• 5Σd¹ B
• 
  
  
  C
• 
  D

Degree of linear relationship between two variables is called

• regression A
• association B
• correlation C
• disassociation D

The value of coefficient of association lies between

• 0 and + 1 A
• -1 and + 1 B
• -1 and 0 C
• -0.5 and + 0.5 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

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

• 
  A
• 
  B
• 
  C
• 
  D