statistics key formulae

0.0(0)
studied byStudied by 0 people
0.0(0)
full-widthCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/6

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

7 Terms

1
New cards

percintile value

perecentage x frequency

2
New cards

lower quartile for discrete data

n/4 th value when answer is a decimal always round up. when answer is a whole number take the mean between this value and the one above it

3
New cards

upper quartile for discrete data

3n/4 th value. same rules apply

4
New cards

varience for row of data

sum of x squared/population -[sum of x/pop]²

5
New cards

varience for grouped data

sum of frequency x x²/sum of frequencys- [sum of freq x x /sum of freq]²

6
New cards

standard deviation

square root of varience

7
New cards

coding affect on standard deviation

adding/subtracting has no effect