Sampling Review

If we find the mean of a subset then we have a __________

If we ask everyone in a population a question then it is called a _______ .

Make a statistical observation about variability.

If we ask a subset of the population a question it is a _______ .

A population is _____ .

Two samples of students have a different mean. Why is this?

What is the best month of the year?

Median is a measure of ____________ .

What populations are easier to make predictions about?

Pie charts are good for displaying data with a ______ number of categories.

Students are assigned numbers by a computer. Those numbers are then pulled out of a hat to make a sample. Is this a random sample?

Which samples are more reliable?

American students take less time to get to school that students in SA. Why is this?

The mean of all wellspring students heights is an example of ________ .

AS THE SAMPLE SIZE GOES UP. What happens to sample variability ?

Find the IQR. 57, 81, 33, 30, 38, 40, 51, 91

Find the median: 54, 20, 79, 53, 55, 42, 45, 39, 53, 82, 50

Make a statistical observation about variability.

Interquartile range is a measure of _________ .