A producer of a certain type of electronic component ships to suppliers in lots of twenty. Suppose that 60% of all such lots contain no defective components, 30% contain one defective component, and 10% contain two defective components. A lot is picked, two components from the lot are randomly selected and tested, and neither is defective. (a) What is the probability that zero defective components exist in the lot? (b) What is the probability that one defective exists in the lot? (c) What is the probability that two defectives exist in the lot?
Section 8: Statistics in Liberal Arts Stat 2220, Espey ➢ Stylometry/stylostatistics: investigation of qualitative features of style (deciding authorship by comparing writing styles) ○ Comparing rates of word use, especially non-contextual words ○ Histograms show the distribution of a sample ➢ Box Plot: graphs a 5-number summary of the data, showing its spread and skew ○ Smallest value ○ 25th percentile ○ 50th percentile ○ 75th percentile ○ Largest value ➢ Determining Percentiles: (n × p) where n = sample size and p = percentile in decimal form ○ When n × pequals a whole number, take the average of this ordered value and the next one ○ When n × pequals