UNIT 7 - LESSON 1 REVIEW

THE "M" WORDS

100

WHAT IS THE MODE?

THE NUMBER THAT APPEARS MOST FREQUENTLY

200

HOW DO YOU FIND MEDIAN (BY HAND)?

YOU MUST ORDER THE NUMBERS FROM LEAST TO GREATEST TO FIND THE MIDDLE NUMBER. 

300

WHAT IS THE SYMBOL FOR MEAN IN THE CALCULATOR?

X WITH THE BAR ABOVE IT

400

 CALCULATE THE MEAN: 

{10,20,20,50}

MEAN = 25

SPREAD IT OUT

100

WHAT IS THE FORMULA FOR RANGE?

MAXIMUM - MINIMUM

200

FIND THE RANGE OF THIS DATA: 

{10,15,20,50}

RANGE = 50-10 = 40

300

IQR STANDS FOR ...

INTERQUARTILE RANGE

400

WHAT IS THE FORMULA FOR CALCULATING IQR?

Q3 - Q1

500

THE IQR MAKES UP WHAT PERCENTAGE OF A BOXPLOT?

50%

THIS OR THAT?

100

CATEGORICAL VS NUMERICAL:

EYE COLOR (BLUE, BROWN, HAZEL)

CATEGORICAL

200

CATEGORICAL VS NUMERICAL:

THE HEIGHT OF EVERYONE IN THIS ROOM (INCHES)

NUMERICAL

300

CATEGORICAL VS NUMERICAL:

SHOE SIZE

NUMERICAL

400

CATEGORICAL VS NUMERICAL:

A SURVEY ASKS STUDENTS TO RATE CAFETERIA FOOD ON A SCALE OF 1 TO 5.

CATEGORICAL

PICTURE THIS

100

THIS TYPE OF GRAPH USES RANGES AND THE BARS MUST TOUCH!

HISTOGRAM

200

IN A BOXPLOT, THE VERTICAL LINE INSIDE THE RECTANGULAR BOX REPRESENTS THIS VALUE.

MEDIAN

300

WHAT PERCENTAGE OF DATA FALLS BELOW THE Q3 VALUE?

75%

400

WHICH GRAPH IS BETTER FOR IDENTIFYING INDIVIDUAL DATA VALUES: HISTOGRAM OR DOTPLOT?

DOTPLOT