STATISTICS Height of 7.4 students
By : Chloe, Jazzlyn, Winston, Jayden, Abraham
MEAN
It's a measure of central tendency, which helps describe a set of numbers with a single value.
161 + 160 + 156 + 163 + 152 + 151 + 152,2 + 153 + 144 + 166 + 152 + 153,5 + 159 + 161 + 160 + 156 + 157,2 + 157,7 + 154 + 149
= 3117,6 : 20 = 155,88
MEDIAN
median is the middle value in a sorted dataset
161, 160, 156, 163, 152, 151, 152,2, 153, 144, 166, 152, 153,5, 159, 161, 160, 156, 157,2, 157,7, 154, 149
144, 149, 151, 152, 152, 152,2, 153, 153,5, 154, 156, 156, 157,2, 157,7, 159, 160, 160, 161, 161, 161, 163, 166 156 + 156 2 = 312 : 2 = 156
MODE
the value that appears most often in a set of data
161, 160, 156, 163, 152, 151, 152,2, 153, 144, 166, 152, 153,5, 159, 161, 160, 156, 157,2, 157,7, 154, 149
There are 3 modes in this data set, which each appears twice in the data set. There are number 161, 160, and 156
RANGE
The Range is the difference between the highest value and the lowest value of the data. It helps in knowing the spread of the data.
Formula :
R = Max - Min
R = 166 - 144
R = 22 cm
So, the range from max to min is 22 cm
MAX
Max (Maximum): This is the biggest number in the data set
161 + 160 + 156 + 163 + 152 + 151 + 152,2 + 153 + 144 + 166 + 152 +
153,5 + 159 + 161 + 160 + 156 + 157,2 + 157,7 + 154 + 149
144, 149, 151, 152, 152, 152,2, 153, 153,5, 154, 156, 156, 157,2, 157,7, 159, 160, 160, 161, 161, 161, 163, 166 * The biggest number in the data set
So, the maximum height in this data set is 166 cm
MIN
Min (Minimum): This is the smallest number in the data set.
161 + 160 + 156 + 163 + 152 + 151 + 152,2 + 153 + 144 + 166 + 152 +
153,5 + 159 + 161 + 160 + 156 + 157,2 + 157,7 + 154 + 149
* The smallest number in the data set
144, 149, 151, 152, 152, 152,2, 153, 153,5, 154, 156, 156, 157,2, 157,7, 159, 160, 160, 161, 161, 161, 163, 166
So, the minimum height in this data set is 144 cm
QUARTILE 1
Q1 is a value that divides the data into two parts, with 25% of the data falling below Q1.
144, 149, 151, 152, 152, 152,2, 153, 153,5, 154, 156, 156, 157,2, 157,7, 159, 160, 160, 161, 161, 163, 166.
Q1 = 152 + 152,2 2 = 304,2 : 2 = 152,1
So, the height in quartile 1 is at 152.1cm
QUARTILE 2
Q2 is the middle value of the sorted data, which is usually known as the median.
144, 149, 151, 152, 152, 152, 153, 153,5, 154, 156, 156, 157,2, 157,7, 159, 160, 160, 161, 161, 163, 166.
Q2 = 156 + 156
2 = 312 : 2 = 156
So, the height in quartile 2 is at 156cm
QUARTILE 3
Q3 is the middle value between the median and the highest value of the data group.
144, 149, 151, 152, 152, 152,2, 153, 153,5, 154, 156, 156, 157,2, 157,7, 159, 160, 160, 161, 161, 163, 166.
Q3= 160+160 2 = 320 : 2 = 160
So, the height in quartile 3 is at 160cm
INTERQUARTILE RANGE
Interquatile Range is a combination between Quartiles specifically
Quartile 1 and Quartile 3
IRQ = Quartile 3 - Quartile 1
= 160 - 152,1 = 7,9
LINE DIAGRAM
Line diagram is a diagram that uses line to connect each data
ABEY Alena Alex Roddrick Barham Chloe freya jayden jazzlyn JocelynMatthew Mettiko Michael Nando Nelson Paige Stanley Syellyn Vallero Winston
BAR DIAGRAM
A bar diagram is a diagram that presents categorical data with rectangular bars
JocelynWinstonFreya Jayden, Chloe, MettikoJazzMichaelVallero Rodd,Alena,StanleySyellynNando Abraham, PaigeNelsonAlexMatthew
PIE DIAGRAM
Circle diagram or pie charts, are illustrations used to represent trends or patterns in data.
They appear as circles where proportions of response variables
Jocelyn
Winston
Freya
Jayden, Chloe, Mettiko Jazz
Michael
Vallero
Rodd, Alena, Stanley
Syellyn
Nando
Abraham, Paige
Nelson
Alex Matthew
THANK YOU
