Suppose that the three inspectors in a film factory are supposed to stamp the expiration date on each package of film at the end of the assembly operation, after each package passes inspection. The four inspectors, however, miss some packages. John, who inspects 45 percent of the packages, misses the stamp on 1 in 11 packages. Mindy, who inspects 5 percent of the packages, misses the stamp on 1 in 19 packages. Alice, who inspects 50 percent of the packages, misses the stamp on 1 in 30 packages. What is the probability that a randomly selected package is missing the expiration date

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect