MCQ 511 MarkFor the probability distribution of a discrete random variable X, $E(X)=5$ and $E(X^{2})=35$ what will be the variance of this distribution ?A40B30C20✓10AnswerCorrect option: D. 10DView full question & answer→
MCQ 521 MarkThe binomial distribution has mean 6 and variance $\frac{12}{7}$. What will be the type of this distribution ?APositively skewed✓Negatively skewedCSymmetricDNothing can be said about the distributionAnswerCorrect option: B. Negatively skewedBView full question & answer→
MCQ 531 MarkThe binomial distribution has mean 5 and variance $\frac{10}{7}$. What will be the type of this distribution ?APositively skewed✓Negatively skewedCSymmetricDNothing can be said about the distributionAnswerCorrect option: B. Negatively skewedBView full question & answer→
MCQ 541 MarkFor which value of x, the value of $p(x)$ of binomial distribution with parameters $n=4$ and $p=\frac{1}{2}$ becomes maximum ?A$0$✓2C3D4AnswerCorrect option: B. 2BView full question & answer→
MCQ 551 MarkWhich variable of the following 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 studentDView full question & answer→
MCQ 561 MarkMean and variance of a discrete probability distribution are 3 and 7 respectively. What will be $ E(X^{2}) $ for this distribution ?A10B4C40✓16AnswerCorrect option: D. 16DView full question & answer→
MCQ 571 MarkFor a positively skewed binomial distribution with $ n=10 $, which of the following values might be the value of mean ?A5✓3C9D7AnswerCorrect option: B. 3BView full question & answer→
MCQ 581 MarkWhich of the following is the formula of probability of an event of not getting a success in the binomial distribution with parameters n and p ?A${}^{n}C_{0}p^{n}q^{0}$✓${}^{n}C_{0}p^{0}q^{n}$C${}^{n}C_{0}pq^{n}$D${}^{n}C_{0}p^{n}q$AnswerCorrect option: B. ${}^{n}C_{0}p^{0}q^{n}$BView full question & answer→
MCQ 591 MarkWhich variable of the following will not be an illustration of continuous variable ?AHeight of a studentBWeight of a studentCBlood pressure of a student✓Birth year of a studentAnswerCorrect option: D. Birth year of a studentDView full question & answer→