A researcher is studying the number of prior arrests among a…

A researcher is studying the number of prior arrests among a sample of juvenile offenders in a local detention center. The data below shows the number of prior arrests for each of 7 individuals randomly selected from the facility. Using the data, calculate the sample variance of the number of prior arrests (Round your answer to two decimal places.)   Juvenile ID Number of Prior Arrests A 0 B 2 C 3 D 6 E 4 F 1 G 5

Chloroform, water, and butyl chloride, are liquids that have…

Chloroform, water, and butyl chloride, are liquids that have densities of 1.48 g/cm3, 1 g/cm3, and 0.8862 g/cm3, respectively. Neither chloroform nor butyl chloride can dissolve in water. If you added chloroform and water together in Test Tube #1 and added water and butyl chloride in Test Tube #2, which of the following would best describe the arrangement of the separate liquid layers in the two test tubes?