Problem 10-31 (modified) Determine the sample size required to estimate the population proportion for the specified tolerance and confidence level: (a)(b) pi0.220.70 d0.01320.0070 Sample Size for a 95% Confidence Level Sample Size for a 99% Confidence Level

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

Which of the following is an example of conditional probability

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.