MCQ 11 MarkWhat is the derivative of $f(x)=\frac{4}{x^2} ?$✓$\frac{4}{2 x}$B$\frac{-8}{x^3}$C$\frac{8}{x^3}$D$0$AnswerCorrect option: A. $\frac{4}{2 x}$View full question & answer→
MCQ 21 MarkWhat is the value of $\lim _{x \rightarrow-2} 20$ ?✓$20$B$-20$C$-2$D$-10$AnswerCorrect option: A. $20$View full question & answer→
MCQ 31 MarkWhich of the following is approximate value of mean deviation for normal variable?✓$\frac{4}{5} \sigma$B$\frac{4}{5} \mu$C$\frac{2}{3} \sigma$D$\frac{2}{3} \mu$AnswerCorrect option: A. $\frac{4}{5} \sigma$View full question & answer→
MCQ 41 MarkWhat is the total area under the normal curve to the right hand side of perpendicular line at $X=\mu$ ?A$0$✓$0.5$C$1$D$-0.5$AnswerCorrect option: B. $0.5$View full question & answer→
MCQ 51 MarkWhat are the parameters of Binomial Probability distribution ?✓$n$ and $p$B$n$ and $q$C$p$ and $q$D$n p q$AnswerCorrect option: A. $n$ and $p$View full question & answer→
MCQ 61 MarkAccording to the mathematical definition of probability, what is the probability of each outcome among the $n$ outcomes of a random experiment ?A$0$✓$\frac{1}{n}$C$1$Dcan not sayAnswerCorrect option: B. $\frac{1}{n}$View full question & answer→
MCQ 71 MarkState the independent variable of time series :A$y_1$B$S_i$✓$t$D$C_t$AnswerCorrect option: C. $t$View full question & answer→
MCQ 81 MarkWhat is the value of $b_{y x}$ if the regression line $Y$ on $X$ is $2 x+3 y-50=0$ ?A$\frac{3}{2}$B$-\frac{3}{2}$✓$-\frac{2}{3}$D$\frac{2}{3}$AnswerCorrect option: C. $-\frac{2}{3}$View full question & answer→
MCQ 91 MarkWhich of the following values is not possible as a value of $r^{\prime} ?$A$0.999$✓$-1.09$C$-0.85$D$0$AnswerCorrect option: B. $-1.09$View full question & answer→
MCQ 101 MarkWhich index number is used by the Reserve Bank of India to take necessary steps to 'control inflation by studying the changes in price levels :AIndex number for Trade✓Wholesale price index numberCCost of living index numberDIndex number of National IncomeAnswerCorrect option: B. Wholesale price index numberView full question & answer→