When a drug company wants to introduce a new drug, it must subject the drug to rigorous testing. The final stage of this testing is human clinical trials, in which progressively larger groups of volunteers are given the drug and carefully monitored. One aspect of this monitoring is keeping track of the frequency and severity of side effects. The figure above shows the results for the side effect of headaches for a certain drug. According to the trial guidelines, all moderate and severe headaches are considered to be adverse reactions. Which of the following best describes the data?
A. The data is symmetric with over 50% of participants having adverse reactions.
B. The data is skewed to the right with over 50% of participants having adverse reactions.
C. The data is skewed to the right with over 75% of participants failing to have adverse reactions.
D. The data is skewed to the right with approximately 50% of participants having no reaction at all.
Answer:C
When a drug company wants to introduce a new drug, it must subject the drug to rigorous testing. The final stage of this testing is human clinical trials, in which progressively larger groups of volunteers are given the drug and carefully monitored. One aspect of this monitoring is keeping track of the frequency and severity of side effects. The figure above shows the results for the side effect of headaches for a certain drug. According to the trial guidelines, all moderate and severe headaches are considered to be adverse reactions. Which of the following best describes the data?
A. The data is symmetric with over 50% of participants having adverse reactions. B. The data is skewed to the right with over 50% of participants having adverse reactions. C. The data is skewed to the right with over 75% of participants failing to have adverse reactions. D. The data is skewed to the right with approximately 50% of participants having no reaction at all.
Explanation: C