Interpretation: b. For the company you chose, estimate the instantaneous rate of change at the beginning of your 2-year period by choosing two points close together, for instance one week apart. Interpret your answer. (Hint: When calculating the IROC, it might be helpful to remember that 1 week is 1/52 of a year.) First date and stock price___Feb 9 2018_ _$160.80_ Feb 23 2018 Second date and stock price_ 2018_ $1$3.06 IROC (rounded to two decimal places): Interpretation: Market Summary > Mcdonald's Corp NYSE: MCD + Follow 181.23 USD +0.11 (0.061%) + Closed: May 8, 7:04 PM EDT. Disclaimer After hours 181.49 +0.26 (0.14%) 1 day I day 5 days 1 month 6 months YTD 1 year 5 years Max 250 156.68 USD Sep 29, 2017 2016 2017 2018 2019 2020 Open High Low Mkt cap P/E ratio 183.20 183.43 179.91 134.75B 23.74 Div yield Prev close 52-wk high 52-wk low 2.76% 181.12 221.93 124.23 Interpretation: b. For the company you chose, estimate the instantaneous rate of change at the beginning of your 2-year period by choosing two points close together, for instance one week apart. Interpret your answer. (Hint: When calculating the IROC, it might be helpful to remember that 1 week is 1/52 of a year.) First date and stock price___Feb 9 2018_ _$160.80_ Feb 23 2018 Second date and stock price_ 2018_ $1$3.06 IROC (rounded to two decimal places): Interpretation: Market Summary > Mcdonald's Corp NYSE: MCD + Follow 181.23 USD +0.11 (0.061%) + Closed: May 8, 7:04 PM EDT. Disclaimer After hours 181.49 +0.26 (0.14%) 1 day I day 5 days 1 month 6 months YTD 1 year 5 years Max 250 156.68 USD Sep 29, 2017 2016 2017 2018 2019 2020 Open High Low Mkt cap P/E ratio 183.20 183.43 179.91 134.75B 23.74 Div yield Prev close 52-wk high 52-wk low 2.76% 181.12 221.93 124.23