Answer: More grandparents prefer using hard copy rather than a digital copy.
Explanation:
Given: The total number of grandparents surveyed = 250
which is 10 times n where n is the sample size = 25
i.e. we need to multiply 10 to each number given in picture.
Therefore, the number of grandparents surveyed prefer digital copy =
![4*10=40](https://img.qammunity.org/2020/formulas/mathematics/middle-school/37jg9hdn23k4btwtd8kua37aydc3lhkcnv.png)
The number of grandparents surveyed prefer digital copy =
![21*10=210](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ff3vffs5j20nfu23f96862aiusmppdsmsy.png)
Clearly 210>40
Therefore, More grandparents prefer using hard copy rather than a digital copy.