math exam review

transformations-movement of a shape on a coordinate grid

translation- slide along a straight line

rotation-turn around a fixed point

reflection-mirror image

know how to do and describe each of them

here is a game to help you practice transformations

Measures of Central Tendency!

A value that represents the centre of a data set.

Can be mean, median, or mode.

A data set is a group of numbers that you must arrange in order from least to greatest.

23,4,5,6,5,4,5,3,4,5,6,7,5,34,3

2,3,3,3,4,4,4,5,5,5,5,5,6,6,7,34

Median - The middle number in a set of data, offer the data have been arrange in order.

Median of 2,5,6,8,9 is 6

Mode - The most frequently occuring number in a set of data.

Mode and most both have 4 letters.

Mode of 3,5,7,9 is 7

Mode of 1,2,3,5 is no mode

Mean - A mean of central tendency
the sum of a set of values divided by number
of values in the set

Mean of 6,4,8 is 6

Range - The positivew difference between the largest and smallest values in a the set

Range of 4,8,5,6,9,1,3,5,8,16

Outlier - A value that is much larger of smaller than the outlier data value
the data set may haver more than 1 outlier or zero outliers

Outliers are 1,67,68,67,64,65,100

Find mean, median, mode, range, and outliers for the following data sets.

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Measures of Central Tendency

Measures of Central Tendency

    a value that represents the center of a data set

can be the mean, median, or the mode

data set is a group of numbers that you must 

arrange in order from least to greatest.

the middle number in a set of data that have been ordered.

Philip's question: 1, 2, 7, 8, 9, 10
Answer

Mode- the most frequently occurring number is a set of data (number that shown up the most)

mode and most both have four letters

Mean- a measure of central tendency 

the sum of a set of values divided to the number in the values of set

add up all the numbers. divide that by how many numbers there are.

Range- the positive difference between the largest and smallest values in a data set.

~~~~~

Outliers- a value that is much larger or smaller than the other date value

the data set may have more than one outlier

Find mean, median, mode, range and outliers for the following data set.

Answer that >.O 

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Measures of Central Tendaency

-value that represents the centre of a data set
-can be the mean,median, or mode
Data Set- is a number that you must arrange in order from least to greater. 2,3,4,5,6,5,4,5,3,4,5,6,7,5,34,3 hours of studying

2,3,3,3,4,4,4,5,5,5,5,5,6,6,7,34

Median- the middle number in a set of data after the data have been arranged in order
eg. median of 2,5,6,8,9 is 6

Mode- the frequently occurring number in a set of data

hint: mode and most have 4 numbers

eg. mode of 3,6,7,7,9 is 7

Mean- a measure of a central tendency, the sum of the set of value divided by the number of values in the set

eg. mean of 6,4,8 is 6

add up all the numbers divided that by how many numbers there are.

4,6,8

4+6+8=18

Range-The positive between the largest and smallest values in a data set

Range of 4,5,5,6,9,1,3,5,8,6

1,3,4,5,5,6,6,8,8,9

Outlier-a value that is much larger or smaller then the other data value

the data set may have more then 1 outlier or 0 outliers

outliers are 1,67,67,67,65,100

here's a link if you didnt understand this

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math notes for june 7

Measures of central tendancy

Here's a video:

Measures of Central Tendency

Measures of Central Tendency

-A value that represents the center of a data set

-Can be the mean,median, or mode

-data set is a group of numbers that must arrange in order from least to greatest

Eg: 2, 3, 4, 5, 6, 5, 4, 5, 3, 4, 5, 6, 7, 5, 34, 3

2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 7, 34

Median- the middle number in a set of data

after the data have been arranged in order

Median of 2 5, 6, 8, 9 is 6

Median of 1, 3, 6, 8, 9, 10 is 7 because if you have 2 numbers in the middle add them up the divide by 2. So 6+8=14/2=7

Solution: Odd = don't add

Even=add

Mode-the most frequently occurring number in a set of data

-mode and most both have 4 letters

-mode of 3, 5, 7, 7, 9 is 7

-mode of 2, 2, 4, 6, 6, 8, 11 is 2 and 6

-mode of 1, 2, 3, 5 is no mode

-mode of 1, 1, 1, 2, 2, 2, 3, 3, 3 is no mode

-mode of 1, 1, 1, 2, 2, 2, 3, 3, 3, 4 is 1, 2 and 3

Mean-a measure of central tendency

the sum of a set of values divided by the number of values in the set

-mean of 6, 4, 8 is 6 because you add them all together then divided by how much numbers there is. So 6+4+8=18/3=6

Range- the positive difference between the largest and smallest values in a data set

-Range of 4, 8, 5, 6, 9, 1, 3, 5, 8, 6, is 9-1=8

Outliers- a value that is much larger or smaller then the other data value

-the data set may have more than 1 outliers or zero outliers

Outliers are 1, 67, 68, 67, 64, 65, 100

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