Show work. find the mean and standard deviation of the data. round to the nearest tenth. 20,16,18,14,9,20,16

△abc is similar to △xyz. also, side ab measures 6 cm, side bc measures 18 cm, and side xy measures 12 cm. what is the measure of side yz ? enter your answer in the box.

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected

Matt makes a birdhouse. he needs 2 1/3 cans of paint for each birdhouse. he has 10 cans of paint. how many bird houses can be made? ( i need this answered in the next 9 hrs )