Quiz MTH302
Question # 1
The formula for the OR rule in probability theory is defined to be
Select correct option:
P(A or B) = P(A) - P(B)
P(A or B) = P(A) + P(B)-P(A and B)
P(A or B) = P(A) + P(B)
P(A and B) = P(A) +P(B)+ P(A or B)
Question # 2
The minimum number of points required to calculate the intercept of a straight line is/are
Select correct option:
one
two
three
one or three
Question # 3 of 10
"The business ups and downs over a period of certain number of years” is an example of
Select correct option:
Seasonal variation
Cyclical fluctuation
Secular trend
None of these
Question # 4
The estimated regression line of Y on X is
Select correct option:
Y` = a + bX
X` = a + bY
Y` = a - bX
iv. None of above
Question # 5
The standard error of estimate is
Select correct option:
based on squared deviations from the regression line.
may assume negative values.
in squared units of the independent variable.
All the given choices are correct.
Question # 6
If a dice is thrown then the probability of getting an odd number or an even number is
Select correct option:
1/2
1/3
1
None of these
Question # 7
Exponential Smooth constant/ proportion of error
Select correct option:
Is positive always
Negative
between 0and 1 Lies
None of these
Question # 7
Exponential Smooth constant/ proportion of error
Select correct option:
Is positive always
Negative
between 0and 1 Lies
None of these
Question # 9
The method of least squares finds the best fit line that _______ the error between observed & estimated points on the line
Select correct option:
a) Maximizes
b) Minimizes
c) Reduces to zero
d) b & c
Question # 10
The moving averages represent ------------------
Select correct option:
Time series variations
Co-efficient of variations
Statistical Dispersion
Absolute deviation
