The Closing Price of a Company's Stock Tomorrow Can Be

question 163

Multiple Choice

The closing price of a company's stock tomorrow can be lower,higher or the same as today's closing price.Based on the closing price of the stock collected over the last month,25% of the days the closing price was higher than previous day's closing price,45% was lower than previous day's and 30% was the same as previous day's.Based on this information,the probability that tomorrow's closing price will be higher than today's is 25%.This is an example of using which of the following probability approach?

• A)A priori probability
• B)Empirical probability
• C)Subjective probability
• D)Conditional probability

Apply the concept of standard error in the context of margin of error and confidence interval calculations.

Evaluate the impact of changes in sample size on the margin of error and vice versa.

Identify the appropriate sample size for achieving desired confidence levels and margins of error in polling and survey contexts.

Interpret confidence intervals in terms of real-world polling, research contexts, and decision-making.

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