What does the acronym URL stand for?

Secure Digital cards are formatted with the NTFS file system

Indicate whether the statement is true or false.

Value Watt lightbulbs have an average lifetime of 720 hours of use before burning out, with a standard deviation of 90 hours, according to the quality control department. Assume these times are normally distributed. What percent of bulbs will last between 720 and 810 hours?

A. 47.5% B. 34.1% C. 15.9% D. 50.0% E. 13.5%