The Figure Below Provides Data for Measles Deaths and Vaccinations

question 67

Multiple Choice

The figure below provides data for measles deaths and vaccinations.What can you conclude from these data?

• A)The spike in measles deaths in 1990 was due to a lack of vaccinations.
• B)The rate of measles vaccinations increased between 1970 and 2015.
• C)Measles vaccination rates are the lowest in African countries.
• D)Measles deaths decreased between 1950 and 1960 due to the use of the measles vaccine.

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Definitions:

Correlation Coefficient

A numerical indicator showing the degree to which multiple variables co-vary.

Cause-and-Effect Relationship

A connection between two events where one event (cause) leads to the outcome of another event (effect).

Sampling Bias

A distortion in the outcome of a study due to the method in which samples are collected, resulting in a non-representative sample of the population.

Response Set

A tendency in survey respondents to answer questions in a particular pattern, regardless of the content.