How las HOW Tast IS TInC uatu 4:00 PM? 24. A particle moves along the curve y = 2 sin(x/2). As the particle passes through the point (, 1), its x-coordinate increases at a rate of 10 cm/s. How fast is the distance from the particle to the origin changing at this instant? 25. Water is leaking out of an inverted conical tank at a rate of 10,000 cm'/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 6 m and the diameter at the top is 4 m. If the water level is rising at a rate of 20 cm/min when the height of the water is 2 m, find the rate at which water is being pumped into the tank. 26. A trough is 10 ft long and its ends have the shape of isos- celes triangles that are 3 ft across at the top and have a height of 1 ft. If the trough is being filled with water at a rate of 12 ft3

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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.