Empirical research on stock market data for two consecutive trading days indicates that 40% of the stocks that went up on the first day also went up on th second day. Yesterday, 600 stocks went up. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p, where p gives the proportion of the 600 stocks that went up yesterday that will go up today. (b) Find the standard deviation of p. (c) Compute an approximation for P(p <0.39), which is the probability that fewer than 39% of the stocks that went up yesterday will go up again today. Round your answer to four decimal places.
Empirical research on stock market data for two consecutive trading days indicates that 40% of the stocks that went up on the first day also went up on th second day. Yesterday, 600 stocks went up. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p, where p gives the proportion of the 600 stocks that went up yesterday that will go up today. (b) Find the standard deviation of p. (c) Compute an approximation for P(p <0.39), which is the probability that fewer than 39% of the stocks that went up yesterday will go up again today. Round your answer to four decimal places.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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