Hi, can someone help me on this volume problem?

Worth 15 points!!

Scientists are studying hurricanes to determine the number of hurricanes in the past 50 years that have caused greater than $1 million in damages. which best describes the population? hurricanes hurricanes that caused greater than $1 million in damages scientists scientists participating in the research

Secondary school falls between a . kindergarten & elementary b. elementary school & post secondary school c. post secondary school & higher education d. middle school & high school

Arandom variable x has a mean of 10 and a standard deviation of 3. if each value of x is multiplied by 2, what will the new mean and standard deviation be?