2. There has been some research showing that a person's life expectancy (how long they live) is related to their body mass index as well as their parent's life span (average of how long both their parents lived). You measure the life expectancy, body weight and parents life span of multiple people over the last 50 years and get the following correlations. (note this data is completely made up, do NOT report to this anyone as factual) Parent's Life Span Body Mass Index Life Expectancy .53 -.43 Body Mass Index -.15 I a) How much variance in Life Expectancy can be accounted for by Body Mass Index and Parent's Life Span? b) What is the multiple correlation coefficient (i.e., R)? c) If you know the parent's life span, how important is it to know a person's Body Mass Index when predicting their life expectancy? Provide statistical evidence for your