Home Library Explore SAT

Home Library Explore SAT

Stats Flashcards | StudBud

What is a mean?

How is a variance related to a std. dev.?

Stats

6 terms·StudBud Administration·28 plays

math

Flashcards6 cardsFPractice quizPHost liveL

Questions 6

Answers

1
How is a variance related to a std. dev.?
the expected std. dev. is the variance
it is the square of the standard deviation
the square of the variance is equal to the std. dev.
They are unrelated
2
What is a mean?
most frequent value
Avg. value
highest value
midpoint
3
What is the formula for a z-score?
X value- mean divided by the standard deviation
X value divided by mean
X value squared
Mean + standard deviation
4
What is the mode of the following set of numbers: 20, 20, 20, 21, 21, 22, 22, 23, 25,
21
21.56
20
22.5
5
On what scale is probability measured?
0 to 100
0-1
1 to 10
-1 to 1
6
Which of the following jobs do not use statistics?
statistician
biostatiscian
sports medicine
public service