Question 11 MarkWhat are the stationary points of a function?AnswerThe point which give maximum value of function $f(x)$ is called stationary point of a function.View full question & answer→
Question 21 MarkFind $\frac{d y}{d x}$ for $y=x^4-3 x^2+2 x-3$.Answer$4 x^3-6 x+2$View full question & answer→
Question 31 MarkExpress $N(16,0.5)$ in interval form.Answer$(15. 5,16.5)$View full question & answer→
Question 41 MarkIf $|x+4|<0.04=(k,-3.96)$, then find the value of $k$.Answer$k=-4.04$View full question & answer→
Question 51 MarkWhat is the approximate value of quartile deviation for standard normal variable?Answer$\frac{2}{3}$View full question & answer→
Question 61 MarkWhat is the shape of normal curve?AnswerA normal curve is exactly bell shaped.View full question & answer→
Question 71 MarkDefine Bernoulli Trials.AnswerIf a dichotomous experiment is repeated $n$ times and in each trial probability of success $(0)$View full question & answer→
Question 81 MarkMean of a symmetrical binomial distribution is $7.$ Find the value of its parameter $n$.Answer$n=14$View full question & answer→
Question 91 MarkState the relation between mean and variance of binomial distribution.AnswerIn binomial distribution value of mean is always greater than its variance.Mean $ > $ Variance, $u p>n p q$View full question & answer→
Question 101 MarkDraw a Venn diagram for Mutually Exclusive events $A$ and $B$.View full question & answer→
Question 111 MarkArrange $P ( A \cup B ), P ( A ), P ( A \cap B ), 0, P ( A )+ P ( B )$ in ascending order.AnswerAscending order : $0, P ( A \cap B ), P ( A )$, $P(A \cup B), P(A)+P(B)$View full question & answer→
Question 121 MarkWhich component of the Time Series is impossible to predict?AnswerRandom' or Irregular component of the Time series is impossible to predict.View full question & answer→
Question 131 MarkWhat are the constants $a$ and $b$ in the regression line $\hat{y}=a+b x$ ?AnswerHere ' $a$ ' is called a intercept of regression line and ' $b$ ' is called the regression coefficient or slope of regression line.View full question & answer→
Question 141 MarkDefine Correlation.AnswerIf there are simultaneous changes in the values of two variables due to direct or indirect cause-effect, then it is said that there is correlation between two variables.View full question & answer→
Question 151 Mark'The price index number of petrol is $₹ 100$ '. State whether this statement is True or False. If false, correct it and rewrite.AnswerThe statement is false because index number is free from the unit. So the correct statement is: The price index number of petrol is $100 .$View full question & answer→