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

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

If 6Σd²/n(n² - 1) is zero, the value of r_s is ________.

• 0.5 A
• 1 B
• -1 C
• 0 D

(AB), (Aβ), (αB), (αβ) are called

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

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

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

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

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

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

• 
  A
• 
  B
• 
  C
• 
  D

If two attributes A and B are independent, then co-efficient of association is______.

• -1 A
• +1 B
• 0 C
• 0.5 D

The sample size n is reasonably large so that for each cell, the estimated expected frequency must be at least

• 2 A
• 3 B
• 4 C
• 5 D

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

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

• Φ² A
• q² B
• α² C
• β² D

When the expected frequencies are very small the value of=χ2has been

• adjusted A
• omitted B
• changed C
• all of these D

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

• Independent A
• Dependent B
• Correlated C
• Quantitative 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 degree of linear relationship between two variable is called________.

• Dependent A
• Association B
• Positive C
• Correlation D

Degree of linear relationship between two variables is called

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

The degree of relationship between the two attributes is called

• regressor A
• correlation B
• regressand C
• association D

The degree of relationship between the two attributes is called_______.

• Association A
• Correlation B
• Contingency C
• Quantitative D