Statistics Flashcards
1
Q
How do you calculate sensitivity?
A
TP / (TP+FN) = sensitivity
2
Q
How do you calculate specificity?
A
TN / (TN+FP) = specificity
3
Q
How do you calculate positive predictive value?
A
TP / (TP+FP) = PPV
4
Q
How do you calculate negative predictive value?
A
TN / (TN/FN) = NPV
5
Q
How does SD relate to normal distribution?
A
±1 SD includes 68.3% of the data
±1.96 SD includes 95.0% of the data
±2 SD includes 95.5% of the data
±3 SD includes 99.7% of the data
