Question
Problem 1 The following table shows America's 10 largest corporations for 2020. Next to each corporation is its market capitalization (in $ billions as of
Problem 1
The following table shows America's 10 largest corporations for 2020. Next to each corporation is its market capitalization (in $ billions as of March 26, 2020) and its total return (in %) to investors for the year 2020.
| Company | Mkt.Cap. | Total Return |
| Walmart | 211 | -2.7 |
| Exxon Mobil | 316 | -12.6 |
| Chevron | 151 | 8.1 |
| General Electric | 198 | -0.4 |
| Bank of America | 182 | 7.3 |
| Conoco Philips | 80 | 2.9 |
| AT & T | 157 | 4.8 |
| Ford Motor | 49 | 336.7 |
| JP Morgan Chase | 190 | 19.9 |
| Hewlett-Packard | 127 | 43.1 |
Calculate the mean and the median for market capitalization. Calculate the mean and the median for total return. For each variable (market capitalization and total return), comment on which measure better reflects central location.
Problem 2.
Calculate the 20th, 50th, and 80th percentiles for the following data set:
| 120 | 215 | 187 | 343 | 268 | 196 | 312 |
Problem 3:
Sales for Bata (in millions of Rp), 2015-2020
| Year | 2016 | 2017 | 2018 | 2019 | 2020 |
| Sales | 14,322 | 15,883 | 15,203 | 15,534 | 17,915 |
Calculate the growth rates for 2016-2017, 2017-2018, 2018-2019, and 2019-2020 and use
them to compute the average growth rate.
Problem 4: Problem 1
The following table shows America's 10 largest corporations for 2020. Next to each corporation is its market capitalization (in $ billions as of March 26, 2020) and its total return (in %) to investors for the year 2020.
| Company | Mkt.Cap. | Total Return |
| Walmart | 211 | -2.7 |
| Exxon Mobil | 316 | -12.6 |
| Chevron | 151 | 8.1 |
| General Electric | 198 | -0.4 |
| Bank of America | 182 | 7.3 |
| Conoco Philips | 80 | 2.9 |
| AT & T | 157 | 4.8 |
| Ford Motor | 49 | 336.7 |
| JP Morgan Chase | 190 | 19.9 |
| Hewlett-Packard | 127 | 43.1 |
Calculate the mean and the median for market capitalization. Calculate the mean and the median for total return. For each variable (market capitalization and total return), comment on which measure better reflects central location.
Problem 2.
Calculate the 20th, 50th, and 80th percentiles for the following data set:
| 120 | 215 | 187 | 343 | 268 | 196 | 312 |
Problem 3:
Sales for Bata (in millions of Rp), 2015-2020
| Year | 2016 | 2017 | 2018 | 2019 | 2020 |
| Sales | 14,322 | 15,883 | 15,203 | 15,534 | 17,915 |
Calculate the growth rates for 2016-2017, 2017-2018, 2018-2019, and 2019-2020 and use
them to compute the average growth rate.
Problem 4:
Frequency distribution of house prices (in $1,000s):
| Class | Frequency |
| 400 - 500 | 5 |
| 500 - 600 | 12 |
| 600 - 700 | 15 |
| 700 - 800 | 6 |
| 800 - 900 | 3 |
a. Calculate the average house price.
b. Calculate the sample variance and the sample standard deviation.
Frequency distribution of house prices (in $1,000s):
| Class | Frequency |
| 400 - 500 | 5 |
| 500 - 600 | 12 |
| 600 - 700 | 15 |
| 700 - 800 | 6 |
| 800 - 900 | 3 |
a. Calculate the average house price.
b. Calculate the sample variance and the sample standard deviation.
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College Algebra (Subscription)
Authors: Mark Dugopolski
6th Edition
0321916670, 9780321916679
