Part IV$.(5$ points$)$ This visualization shows the percent change in stock price and volume each

trading day for Oracle Corp. from May $31,2011,$ through November $30,2021.$ Use it to answer

the following questions.

Oracle Corp. Stock Price Move $(\%)$ by Date

Oracle Corp. Trading Volume by Date

a$)$ The trading volume data shows something of a pattern. What might explain the peaks

in trading volume?

b$)$ Identify the period that showed the most dramatic swings in stock price over this

period. What, based on the time period, might have been a cause of that volatility?