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Page history last edited by PBworks 16 years, 10 months ago

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**It is consist of MEAN,MEDIAN,MODE and RANGE**

*The sum of the numbers in a set of data divided by the pieces of data*

????WoRdS????

Set of data-These are the numbers that are given in a problem.

e.g.

Bill got his test and he got 15,16,30,20,35,12 and 80. what is the average of his test?

*the underline number is the set of data.*

Pieces of data-The number of how many numbers are there in a set of data.

e.g.

Bill got his test and he got 15,16,30,20,35,12 and 80.

| | | | | | |

1 2 3 4 5 6 7

*There are 7 pieces of data in a set of data.*

Average-quantity, rating, or the like that represents or approximates an arethmitic mean.

How to do it??

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-when you get the set of data. you just add it and divide it to the pieces of data

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W0rD Pr0Blem!!!!

1.Mr. Math is calculating Josephine's grade. Her scores in her exams and test are 10, 22, 13, 5, 48, and 35. What is her average grade in Mathematics?

answer:

10+22+13+5+48+35=133/6=22.16

The average she got for her test and quizzes is 22.16

2.Kevin got a job and every 2nd week of the month he got his paycheck. In the first 7 months in his job, the amount of his paycheck according to the time he go to work are $120, $200, $75, $50, $65 and $182. What was the average amount he got for the first seven months he work?

$120+$200+$75+$50+$65+$182=$692/6=$115.3

The average amount he gets for the first 7 months is $115.3

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The middle of a set of data is arranged in numerical order.

How to do it????

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WorD pr0Blem!!!!

1. Anne owns a factory of apple pies... She was thinking what is the median of the Apple pie they deliver every week. The record of the transportation of apple pies to markets are 100,90, 250, 850, 520, 75 and 82. find the median of the Apple pies delivered to markets.

arrange the number first!

75, 82, 90, 100, 250, 520, 850

find the partner of each number (begin with 75 and 850, Do Left-right-left-right)

75-850,82-520,90-250

the only number left in the set of data is 100.

100 is the median of the deliveries of apple pies in the market.

2.Maddie scored 7,9,5,3,15,6 and 8 points for the 7 basketball games. She wants to show that she is a valuable player. What is the median of her scores?

3,5,6,7,8,9,15

3-15,5-9,6-8

The median of her points in the basketball games is 7.

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The value that occurs most often. It is a number that is most favourable in a set of data.

How to do it???

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w0rD pR0BLeM!!!

1.There is a book fair going on at St. Bernadette Academy School. Grade 5 students were ask to choose a book in the library and the most number of students who choose the book will be read in every classroom. There are 3 classrooms in grade 5. There are 5 books in the fair. The books are Mandurra, Chicken Chick, Happy Sundays, Abby Hayes and Everyone loves my shirt. In the survey, 8 students voted Mandurra. 7 voted Chicken Chicks, 8 voted Happy Days,3 voted Abby Hayes and 8 voted Everyone Loves My Shirt. What is the mode of the votes and what books teachers are gonna read to their students?

Answer:

set of data:8-mandurra,7-chicken chicks,8-happy days,3-abby hayes,8-everyone loves my shirt

mode:8

books that the teachers going to read to the student:Mandurra,Happy Days, and Everyone loves my shirt

2.find the mode in the set of data.5,6,8,3,7,3,4,3 .

answer:

3,3,3,4,5,6,7,8

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The number 3 is the mode in the set of data.

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The difference between the lowest and highest values.arrange it in numerical order

How to do it???