MCQ 11 MarkWhat is $\frac{d y}{d x}$ if $y=a x^n$, $a$ is a constant ?A$n x^{ n -1}$✓an $x^{n-1}$C$0$Dan $x^{n+1}$AnswerCorrect option: B. an $x^{n-1}$View full question & answer→
MCQ 21 MarkWhat is the modulus form of $0.3$ neighbourhood of $3 ?$A$|x-0.3|<3$✓$|x-3|<0.3$C$|x+3|<0.3$D$|x-3|>0.3$AnswerCorrect option: B. $|x-3|<0.3$View full question & answer→
MCQ 31 MarkWhich of the following is approximate value of quartile deviation for standard normal variate?A$\frac{2}{3} \sigma$✓$\frac{2}{3}$C$\frac{4}{5} \sigma$D$\frac{4}{5}$AnswerCorrect option: B. $\frac{2}{3}$View full question & answer→
MCQ 41 MarkWhich of the following are mean and variance of standard normal variable ?✓Mean $=0$, Variance $=1$BMean $=1$, Variance $=0$CMean $=0$, Variance $=0$DMean$ -1 ,$ Variance $=1$AnswerCorrect option: A. Mean $=0$, Variance $=1$View full question & answer→
MCQ 51 MarkWhich of the following variable will be an illustration of discrete variable?AHeight of a studentBWeight of a studentCBlood pressure of a student✓Birth year of a studentAnswerCorrect option: D. Birth year of a studentView full question & answer→
MCQ 61 MarkWhich of the following options is true for any event $A$ of the samle sapce ?A$P ( A )<0$B$0 \leq P$ (A) $\geq 1$✓$0 \leq P ( A ) \leq 1$D$P ( A )>1$AnswerCorrect option: C. $0 \leq P ( A ) \leq 1$View full question & answer→
MCQ 71 MarkWhich variation is shown in 'decrease in the production of company due to strike?ACyclicalBTrendCSeasonal✓RandomAnswerCorrect option: D. RandomView full question & answer→
MCQ 81 MarkThe regression line always passes through which point ?A$(0, \bar{y})$B$(\bar{x}, 0)$✓$(\bar{x}, \bar{y})$D$(0,0)$AnswerCorrect option: C. $(\bar{x}, \bar{y})$View full question & answer→
MCQ 91 MarkWhat is the value of $r$, if all the points plotted in a scatter diagram lie on a single line only $?$A$0$✓$1$ or $-1$C$0.5$D$-0.5$AnswerCorrect option: B. $1$ or $-1$View full question & answer→
MCQ 101 MarkThe price of an item increases by $3: 5$ times in the current year as compared to the base year. What will be the price index number?A$45$✓$450$C$550$D$350$AnswerCorrect option: B. $450$View full question & answer→