MCQ 511 MarkIn normal distribution, usually what percentages of the observations are included in the limits $\mu \pm \sigma \ ?$A$34.13 \%$B$95.45 \%$✓$68.26 \%$D$50 \%$.AnswerCorrect option: C. $68.26 \%$View full question & answer→
MCQ 521 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 531 MarkMean and the first quartile for a normal distribution are 15 and 11 respectively. Which of the following is the value of the third quartile ?A8B14✓19D10AnswerCorrect option: C. 19CView full question & answer→
MCQ 541 MarkWhat is the area under the normal curve to the right hand side of perpendicular line at $X=\mu$ ?A$0$B0.5C1✓-0.5AnswerCorrect option: D. -0.5DView full question & answer→
MCQ 551 MarkWhich of the following are mean and variance of standard normal variable ?✓$Mean=0, Variance=1$B$Mean=1, Variance=0$C$Mean=0, Variance=0$D$Mean=1, Variance=1$AnswerCorrect option: A. $Mean=0, Variance=1$AView full question & answer→
MCQ 561 MarkWhat is the total area under normal curve among the following ?A-1B$0$✓1D0.5AnswerCorrect option: C. 1CView full question & answer→
MCQ 571 MarkIn normal distribution, usually which limits include 99% of the observations ?A$\mu \pm 1.96\sigma$B$\mu \pm 2\sigma$C$\mu \pm 3\sigma$✓$\mu \pm 2.575\sigma$AnswerCorrect option: D. $\mu \pm 2.575\sigma$DView full question & answer→
MCQ 581 MarkWhich of the following is approximate value of quartile deviation for standard normal variable ?A$\frac{2}{3}\sigma$✓$\frac{2}{3}$C$\frac{4}{5}\sigma$D$\frac{4}{5}$AnswerCorrect option: B. $\frac{2}{3}$BView full question & answer→
MCQ 591 MarkIn usual notion of normal distribution, $ x=25 $, $ \mu=20 $ and $ \sigma=5 $ then which of the following is the value of standard normal variable ?✓1B-1C4D$ \frac{10}{3} $AnswerCorrect option: A. 1AView full question & answer→
MCQ 601 MarkIn normal distribution, usually what percentage of observation are included in the limits $ \mu \pm \sigma $ ?A$34.13 \%$B$95.45 \%$✓$68.26 \%$D$50 \%$AnswerCorrect option: C. $68.26 \%$CView full question & answer→
MCQ 611 MarkHow is the normal distribution of normal random variable X denoted by ?✓$N(\mu,\sigma^{2})$B$N(\mu,\sigma)$C$N(\mu^{2},\sigma)$D$N(\mu^{2},\sigma^{2})$AnswerCorrect option: A. $N(\mu,\sigma^{2})$AView full question & answer→
MCQ 621 MarkMean and the first quartile for a normal distribution are 110 and 30 respectively. Which of the following is the value of the third quartile ?A80B140✓190D100AnswerCorrect option: C. 190CView full question & answer→