A researcher identifies a sample of teenagers and chooses two males, age 16 years old, from lower-income families. She randomly selects one of the males
to be in an intensive tutoring course; she places the second male in a
standard classroom. She continues doing this with pairs of males and
females. This is an example of:

What is the shape of the height and weight distribution

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

How many 2/5s are in 1 and 1/2 plz someone me right now