The correlation coefficient for blood pressure and amount of vegetables eaten which is a negative number (-0.7) suggests that they are in inverse relation. Eating more vegetable should lower the blood pressure. In the same manner, not eating vegetables would likely cause high blood pressure.
20%, there are 100 people so you base each person as a percentage.
91, 168 are the answers I believe because 91 can't be made except by multiplying itself by one and 168 can be divided evenly by twelve
