Use the data in the table below, which shows the employment status of individuals in a particular town by age group.
age full-time part-time unemployed
0—17 27 172 393
18—25 280 193 264
26—34 308 67 25
35—49 513 183 164
50+ 508 171 380
if a person is randomly chosen from the town's population, what is the probability that the person is under 18 or employed part-time?

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

The table above shows approximate conversions from gallons to liters. what is the value of x?

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3