Answer:
The skitties are not evenly distributed by colour
Step-by-step explanation:
Given that Mr. T aylor's 4th grade class uses Skittles to learn about probability. They open several randomly selected bags of Skittles and sort and count the different colors and want to determine if Skittles are evenly distributed by color.
(Two tailed chi square test)
If all are equally distributed then expected values would be equal to 420/5 =104
Observed Red Orange Yellow Purple Green Total
107 101 87 115 10 420
Expected 104 104 104 104 104 420
Chi square 0.0865 0.0865 2.7788 1.16345 84.9615 89.0769
Chi square is calculated as (obs-exp)^2/exp
Total chi square = 89.0769
df = 4
p value = <0.00001
Reject null hypothesis
The skitties are not evenly distributed by colour
Answer:
Area = 77.1
Step-by-step explanation:
The are of a right triangle is
our base and height are 6 for both triangles, so we shall find the area of one of the triangles...
multiply this by 2
Now find the area of the whole circle
our radius is 6, therefore:
Finally, subtract the area of the two triangles from the total are of the circle. The difference left over is our answer
Answer:
<h2><u><em>
4 : 3</em></u></h2>
Step-by-step explanation:
A farmer has 60 horses and 45 cows. Write this as ratio of horses: cows. Give your answer in its simplest form.
60 : 45
its simplest form
4 : 3
You can't deduce the length of a side from the perimeters of a rectangle.
Say that 
and 
are, respectively, the short and long side of the rectangle.
So, we know that
But we can't solve exactly for nor for , unless more information is given.
