Estimation, Measurement, and Statistical Principles

Question 1

Averages

Answer 1

• same as arithmetic mean or mean
• add up all numbers and divide by how many numbers you added
• use the average circle to keep track of info in an average problem (total / number | average)

Question 2

Probability

Answer 2

• expressed as a fraction between 0 and 1

- # of desired outcomes / total number of outcomes

Question 3

An event is independent if it…

Answer 3

…is not affected by previous events

Question 4

Relating stanine scores to percentile scores

Answer 4

-stanine scores assume a normal distribution, so you can approximate the range of percentile scores that equate to that score