Sensitivity is the proportion of patients with disease who test positive. In probability notation: P(T+|D+) = TP / (TP+FN). Specificity is the proportion of patients without disease who test negative. In probability notation: P(T-|D-) = TN / (TN + FP). Pretest Probability is the estimated likelihood of disease before the test is done. It is the same thing as prior probability and is often estimated.
Billed as An Aquarian Exposition: 3 Days of Peace & Music, it was held at Max Yasgur's 600-acre (240 ha; 0.94 sq mi) dairy farm in the Catskills near the hamlet of White Lake in the town of Bethel. Bethel, in Sullivan County, is 43 miles (69 km) southwest of the town of Woodstock, New York, in adjoining Ulster County.
Woodstock is a town in Ulster County, New York, United States. The population was 6,241 at the 2000 census. The Town of Woodstock is in the northern part of the county. Woodstock is northwest of Kingston, New York and lies within the borders of Catskill Park. The first non-indigenous settler arrived around 1770. The Town of Woodstock was established in 1787.