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

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

• Association A
• Correlation B
• Variable C
• Attribute 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

The two attribute A and B are positively associated, if _________.

• (AB) = (A)(B)/n A
• (AB) < (A)(B)/n B
• (AB) ≠ (A)(B)/n C
• (AB) > (A)(B)/n 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

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

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

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

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

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

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

• adjusted A
• omitted B
• changed C
• all of these 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 any ultimate class frequency is negative the data will be

• inconsistent A
• consistent B
• correlated C
• composite D

The degree of relationship between the two attributes is called_______.

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

The degree of relationship between the two attributes is called

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

(α) = (αB) + ------------------

• (Aβ) A
• (AB) B
• (αβ) C
• (A) D

• Φ² A
• q² B
• α² C
• β² 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