Statistics Final Exam Review

An r-value of -0.9 tells us the correlation is:

To solve for the probability of "OR" events, you...

What part of BINS helps you determine the difference between binomial and geometric setting?

Mutually exclusive events occurring simultaneously have a probability of 0

If subjects have been randomly assigned to groups AND randomly sampled, you can:

This is good experimental design.

In the standard normal distribution, the mean is 1.

In a normal distribution, the mean/median/mode are all (roughly) the same.

A representative sample is a subset of a population that reflects the characteristics of the entire population

An intersection means you find the probability of something AND something else

You survey a random sample of people in a strata.

If neither the researcher NOR the participant know if they received the placebo, the experiment is described as:

experimental units are assigned to treatments entirely by chance. What type of experimental design?

If subjects have been randomly sampled, you can:

What's the probability of pulling a striped marble, replacing it, then pulling a black marble?

You survey every person in a cluster.

In a census, we survey a random representative sample of the population.

Within 1 standard deviation of the mean is _____% of the data of a normal distribution.

Good experiments include blinding

This is good experimental design

This experiment utilized a control group.

Mr Elliott is surveying students at KWHS. He randomly selects 25 of the 742 students. 12 reply. What's the population?

To get sample standard deviation using Desmos, you use...

Geometric settings have a predetermined number of trials

You determine an outlier using the IQR*1.5 rule

To solve for the probability of "AND" events, you...

If subjects have NOT been randomly assigned to groups and NOT randomly sampled, you can:

The correlation coefficient tells you about the strength & direction of the correlation.

McConville wants to know if teachers are stressed. He emails a survey & asks us to voluntary respond. What's the bias?

A normal distribution is also called a bell curve.

If you sample without replacement, your events are ____________.