Question 12 MarksWrite any four properties of binomial distribution.AnswerSELF PRACTICE.View full question & answer→
Question 22 MarksState multiplication and division working rule of limit.AnswerSELF PRACTICE.View full question & answer→
Question 32 MarksIf $f(x)=4 x^3+2 x^2+7 x+9$ then for which value of $x f^{\prime \prime}(x)=52$ ?Answer$X=2$View full question & answer→
Question 42 MarksFind $\frac{d y}{d x}$ for $y=x^3+\sqrt{x}-\frac{4}{x}+\frac{1}{\sqrt[3]{x}}+\frac{1}{4}$.Answer$3 x^2+\frac{1}{2 \times \frac{1}{2}}+\frac{4}{x^2}-\frac{1}{3 \times \frac{4}{3}}$View full question & answer→
Question 52 MarksFind the value of $\lim _{x \rightarrow 3} \frac{x^2-2 x-3}{x^2-5 x+6}$Answer$4$View full question & answer→
Question 62 MarksExpress $|x+1|<0.5$ in neighbourhood and interval form.Answerself practiceView full question & answer→
Question 72 MarksFor a normal variable, mean deviation is $48$ and its third quartile is $120 .$ Estimate its first quartile.Answer$Q _1=40$View full question & answer→
Question 82 MarksThe mean and variance of a binomial distribution are $3.9$ and $2.73$ respectively. Find the parameters of the distribution.Answer$n =13$View full question & answer→
Question 92 MarksWrite any two limitations of the method of moving average.Answerself practiceView full question & answer→
Question 102 MarksIf $b_{y x}=0.75, u=6(x-20)$ and $v=2(y-15)$ for the data in the study of a regression line then find the value of $b_{i v}$.Answer$bvu =0.25$View full question & answer→
Question 112 MarksIf $n=22, \operatorname{Cov}(x, y)=-50, S _x=15, S _y=8$, find the value of correlation coefficient ' $r$ '.Answer$r=-0.42$View full question & answer→
Question 122 MarksThe percentage increase in the price relatives of $3$ items $A, B$ and $C$ are $315,328$ and $390$ respectively. If the importance of three items has ratio $5: 7: 8$ find the genral price index number.Answer$449.55$View full question & answer→