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

The value of chi-square statistic is always _______.

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

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

• 
  A
• 
  B
• 
  C
• 
  D

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

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

Degree of linear relationship between two variables is called

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

If any ultimate class frequency is negative the data will be

• inconsistent A
• consistent B
• correlated C
• composite 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 quantity from one individual to another is called a________.

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

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

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

n = (A) + --------------------

• (B) A
• (α) B
• (β) C
• (A) D

The two attributes A and B are negatively associated if

• 
  A
• 
  B
• 
  C
• 
  D

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

• 0.5 A
• 1 B
• -1 C
• 0 D

The total area under the curve of chi-square distribution is_______.

• 1 A
• 0.5 B
• 0 to ∞ C
• -∞ to +∞ D

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

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

• 6Σd₁ A
• 5Σd¹ B
• 
  
  
  C
• 
  D

The degree of linear relationship between two variable is called________.

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

• Φ² A
• q² B
• α² C
• β² D