Question 1 |
Two dice are thrown. What is the probability that the sum of the numbers on the two dice is eight?
\frac{5}{36} | |
\frac{5}{18} | |
\frac{1}{4} | |
\frac{1}{3} |
Question 2 |
Which of the following functions is not differentiable in the domain [-1,1]?
f(x)=x^{2} | |
f(x)=x-1 | |
f(x)=2 | |
f(x)=maximum(x,-x) |
Question 2 Explanation:
we know that |x| is not differentiable at x=0 which is in interval [-1,1].
Rest of the functions are continuous and differentiable everywhere.
Rest of the functions are continuous and differentiable everywhere.
Question 3 |
A regression model is used to express a variable Y as a function of another variable X. This implies that
there is a causal relationship between Y and X | |
a value of X may be used to estimate a value of Y | |
values of X exactly determine values of Y | |
there is no causal relationship between Y and X |
Question 4 |
The principles of motion economy are mostly used while conducting
a method study on an operation | |
a time study on an operation | |
a financial appraisal of an operation | |
a feasibility study of the proposed manufacturing plant |
Question 5 |
The standard time of an operation while conducting a time study is
mean observed time + allowances | |
normal time + allowances | |
mean observed time x rating factor + allowances | |
normal time x rating factor + allowances |
There are 5 questions to complete.