Can I correlate child mortality with immunization?

Goal 4: Reduce by Two Thirds, the Under 5 Mortality Rate

Hotspots of Child Death rate (0-1 year) per 1,000 live births

Percentage of Children 1 year old Immunized Against Measles

Questions to Consider:
1.  Is there a correlation between child mortality and measles immunization?
2.  What is the correlation and why do you think it is?