Let r(t)=cos 2t i +sin 2t j + tk be a vector function. Which of the followings are true for this function? I. Tangent vector is constant at any point. II. Length of tangent vector at any point is constant. III.Tangent vector is (0,2,1) at the point (1,0,0). 4a+b IV. Curvature at a point (a, b, c) is 5c V. Arclength of the curve from a point (a, b, c) to a point (d, e, f) is given by 5dt O a. II, II, IV O b. I, II, V O C. I, II, V O d. I, III, IV

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.