Answer:
1. quickly describe large amounts of data
2. the stock is worth 15% more at the end of the year than at the beginning
3. 9.2%
Explanation:
Descriptive statistics helps to quickly describe large amounts of data because it simply involves using certain measurement tools to describe the data seen such that patterns emerge that will help in analyzing the data. Examples include, frequency tables and measures of variation like range and standard deviation.
When a stock has a 15% return, it means that the owner is getting 15% more than the amount that the stock cost them therefore showing that the stock is worth 15% more at the end of the year than at the beginning.
The return on the stock is;
= (4.75 - 4.35) / 4.35
= 9.2%