ICS Part 2 Statistics Chapter 15 Online Test

If any ultimate class frequency is negative the data will be

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

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

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

The two attributes A and B are negatively associated if

• 
  A
• 
  B
• 
  C
• 
  D

The degree of relationship between the two attributes is called

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

• 6Σd₁ A
• 5Σd¹ 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 value of chi-square statistic is always _______.

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

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

• 
  A
• 
  B
• 
  C
• 
  D

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

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

A process of dividing the objects into two mutually exclusive classes of an attribute is called

• classification A
• trichotomy B
• dichotomy C
• association 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 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

• Φ² A
• q² B
• α² C
• β² D

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

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

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