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

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

The shape of the chi-square distribution depends upon_________.

• Parameters A
• Number of cells B
• Degrees of freedom C
• Standard deviation D

• independent A
• positively associated B
• negatively associated C
• correlated 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 attributes A and B are ________associated, If (AB) < (A)(B)/n.

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

The degree of linear relationship between two variable is called________.

• Dependent A
• Association B
• Positive C
• Correlation 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 chi-square statistic is always _______.

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

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

• -1 A
• +1 B
• 0 C
• 0.5 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

(α) = (αB) + ------------------

• (Aβ) A
• (AB) B
• (αβ) C
• (A) D

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

• 1 A
• 0.5 B
• 0 to ∞ C
• -∞ to +∞ D

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

• Association A
• Correlation B
• Variable C
• Attribute 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

The degree of relationship between the two attributes is called

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