STATISTICS AND PROBABILITY

xy? 1) What is being represented by z in the equation 2 = 0' A. Normal Random Variable C. Mean of the Scores B. Standard Normal Variable D. Standard Deviation 2) Which symbol represents population mean? A a RX' up Hz 3) Pedro, a garbage collector decided to sort soda cans to earn extra income. Let x: the total number of soda cans that he will collect for each day. What type of variable is x? A. Concrete B. Continuous C. Discontinuous D. Discrete 4) What table is used to know the percentage under the curve at any particular point? A. S-table B. T-table C. Y-table D. Z-table 5) Which is true among the following? . . . x + A. Convertmg standard normal variable to normal random variable has the formula 2 : pr {7 . _ . x ,u B. Convertmg standard normal variable to normal random variable has the formula 2 : {T C. Converting standard normal variable to normal random variable has the formula X 2 Ju + OZ D. Converting standard normal variable to normal random variable has the formulaX = ,u OZ 6) A standard normal distribution has which of the following properties? A. The mean is equal to the standard deviation. B. The mean is not equal to the standard deviation. C. The mean and standard deviation both equal to 1. D. The mean is equal to 0 and the standard deviation is equal to 1