DEFINITIONS
WHAT IS STATISTICS
This branch of mathematics involves collecting, analyzing, and interpreting numerical data
GIVE ANOTHER WORD FOR MEAN
AVERAGE
THE MEDIAN IS THE MOST FREQUEST PIECE OF DATA
TRUE OR FALSE
FALSE
WHAT IS THE MODE
THE MOST FREQUENT PIECE OF DATA
WHICH TYPE OF DATA DEALS WITH COUNTING
DISCRETE DATA
What is quantitative data?
This type of data consists of counts or measurements, such as height or temperature.
HOW IS THE MEAN CALCULATED
BY FINDING THE SUM OF THE DATA THEN DIVIDING BY THE NUMBER OF PIECES OF DATA
WHAT MUST BE DONE FIRST IN ORDER TO FIND THE MEDIAN FOR GIVEN DATA
ARRANGE IN ORDER
WHEN WILL THERE BE NO MODE
WHEN ALL THE PIECES OF DATA OCCUR ONLY ONCE
EXPLAIN THE PROCESS OF FINDING THE RANGE FOR A SET OF DATA
YOU FIND THE DIFFERENCE BETWEEN THE BIGGEST AND SMALLEST PIECES OF DATA
What is qualitative data?
This type of data is based on qualities or characteristics, like a person's favorite color.
THE MEAN OF 6, 8, 10 AND 6 IS 6
TRUE OR FALSE
FALSE
THE MEDIAN IN THE SET OF DATA
3, 7, 8, 4, 8 IS
7
WHAT IS THE TERM FOR WHEN TWO MODES EXIST
BIMODAL
GIVE ONE EXAMPLE WHERE STATISTICS IS USED IN EVERYDAY LIFE
Averages: Finding the average score of a test.
Surveys: Asking people to choose their favorite type of music.
Weather: Predicting the chance of rain tomorrow.
Health: Tracking the number of people who recover from an illness.
Sports: Calculating a baseball player's batting average.
Business: A store owner analyzing which products sell the most.
Traffic: Counting the number of cars that pass an intersection in an hour.
Personal Finance: Tracking monthly expenses to create a budget.
Education: A teacher finding the most common grade on a test.
Science: A scientist recording the growth of a plant over time.
WHAT IS DISCRETE DATA
This type of data can only take on specific, countable values, such as the number of students in a class.
WHAT IS THE MEAN OF 12, 15, 16, 16 AND 18
15.4
To find the median for a data set with an even number of values, you must perform this two-step calculation.
FIND THE AVERAGE OF THE SUM OF MIDDLE NUMBERS
STATE THE MODE FOR THE GIVEN SET OF DATA:
23, 12, 23, 14, 23, 12
23
DIFFERENTIATE BETWEEN DISCRETE AND CONTINUOUS DATA
DISCRETE DATA IS DATA THAT IS COUNTED WHILE CONTINUOUS DATA IS DATA WHICH IS MEASURED
WHAT IS CONTINUOUS DATA
This type of data can be measured and can take on any value within a range, such as the weight of a baby.
WHAT IS THE DIFFERENCE BETWEEN THE MEANS OF
A) 6, 7, 8 ,9
B) 7, 8, 6, 9
ZERO
THE MEDIAN FOR THE SET OF DATA
17, 16, 12, 17, 18
IS
17
WHAT DOES THE TERM TRIMODAL MEAN AND GIVE AN EXAMPLE
THERE ARE 3 MODES
EXAMPLE
12, 12, 13, 13, 14, 14, 16
STATE THE MEAN, MEDIAN AND MODE FOR THE GIVEN SET OF DATA:
8, 9, 8, 10, 5
MEAN IS 8
MODE IS 8
MEDIAN IS 8