In items 5 to 9, answer each item taken from the word problem below. Write II. your answers on your paper. Imagine that a point is moving along the graph y = 5x² + 3x. The horizontal rate of change is dx/dt = 3 cm/s. Find its dy/dt when x = -2. 5. The problem is about evaluating its vertical rate of change. True or False? C. Maybe D. Sometimes A. True B. False 13 6. Below are the quantities found in the problem except for one. Which item is it? A. x = -2 ст B. y = 5x? + 3x D. x = 5y? + 3 7. Getting the derivative of the equation, y = 5x² + 3x with respect to time, will result to A. 4 = 10x + 3d 10x业+3空 c. dt dt dt dt B. = 3x+ 10 D. = 3x+ 10 dt 8. From questions 5 to 7, solve the word problem above. Choose the correct answer below. A. -48cm/s С. -50ст /s B. -49cm/s D. -51cm/s 9. The negative sign at the answer in question number 8 denotes an increasing rate. A. True C. Maybe

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.