The Dow Jones Industrial Average is a measure of the overall strength of the stock market, usually abbreviated DJIA.
(a) If the DJIA increases by 1.1% on Monday, increases by 0.8% on Tuesday, decreases by 2.3% on Wednesday, decreases by 1.2% on Thursday, and increases by 0.5% on Friday, what is the overall percentage change for the entire week?
(b) If during a different week (with 5 business days) the DJIA has an overall increase of 12%, but increases by the same percentage every day for 5 days, what would that daily percentage be?