Answer:A)0.5 We can see in the graph , that it is bell-shaped along x =2. A bell-shaped graph along one value is called symmetric graph and it represents a normal distribution.
Since, the give graph is symmetric around x=2, so the mean of the data is 2.
The point immediate left to the mean represents x-σ
so,
2 - σ = 1.5
So,
σ = 0.5
The sigma represents standard deviation.
Hence, Option A is correct ..
Step-by-step explanation:and what is on d is 2.5
Answer:
<em>The sales of ice lollies increased by 76 units between February and August</em>
Step-by-step explanation:
<u>Graph Reading</u>
Line graphs are visual ways of representing two or more data sets and their interrelation.
Graphs are pictures that show how one variable changes in relation to another.
Learning to properly read graphs is a matter of interpreting which pieces of information are useful.
The graph (in the red drawing) shows how sales of ice lollies changed in time. By February, the sales were about 4 units and by August sales were up to 80 units.
This means an increase of 80 - 4 = 76 units.
The sales of ice lollies increased by 76 units between February and August
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Pounds is the correct unit of measure
Answer:
Option 4 - 
Step-by-step explanation:
To find : Which set of rational numbers is arranged from least to greatest?
Solution :
The set of rational numbers are
Writing all number in one form,
Now, -1.4<-0.5<0.2<3
From least to greatest the set of natural numbers are
So,
Therefore, option 4 is correct.
