Which lists the steps in the correct order to find the median of this data set?

24, 16, 23, 30, 18, 29
1. put the numbers in order.
2. cross off high/low pairs.
3. add the leftover numbers.
4. divide the sum by 2.
1. put the numbers in order.
2. cross of high/low pairs.
1. cross off high/low pairs.
2. add the leftover numbers.
3. divide the sum by 2.
1. cross of high/low pairs.

An education expert is researching teaching methods and wishes to interview teachers from a particular school district. she randomly selects ten schools from the district and interviews all of the teachers at the selected schools. which type of sample did she use in this study? a)systematic sample b)probability sample c)stratified sample d)cluster sample

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.

The economic crash that began in 1929 was called the great recession, great depression, great slump, great revolution