Stock performance. The following table displays information for 470 of the S&P 500 stocks on how their oneday change on one specific day compared with their year to date performance up to that specific day.

Specific day Year to Date Positive Change Negative Change Positive Change 164 233 Negative Change 48 25

a) What percent of the companies reported a positive change in their stock price over the year to date?

b) What percent of the companies reported a positive change in their stock price over both time periods?

c) What percent of the companies reported a negative change in their stock price over both time periods?

d) What percent of the companies reported a positive change in their stock price over one period and a negative change in the other period?

e) Among those companies reporting a positive change in their stock price on October 24 over the prior day, what percentage also reported a positive change over the year to date?

f) Among those companies reporting a negative change in their stock price on October 24 over the prior day, what percentage reported a positive change over the year to date?

g) What relationship, if any, do you see between the performance of a stock on a single day and its year to date performance? LO ➋