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:
9.85
Step-by-step explanation:
you can use the Pythagoras theorem
with c the hypotenuse
which is aprox
9.85
ups sorry :(
X shortest piece
X+6 middle piece
X+8 longest piece
Add them
3x+14=56
3x=42
X=42/3=14
Answer:
1/2 + 2/3 + 5/4 = 29/
12
= 2 5/ 12 ≅ 2.4166667
Step-by-step explanation:
Add: 1/
2 + 2/
3 = 1 · 3/
2 · 3 + 2 · 2/
3 · 2 = 3/
6 + 4/
6 = 3 + 4/
6 = 7/
6
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(2, 3) = 6. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 2 × 3 = 6. In the next intermediate step, the fraction result cannot be further simplified by canceling.
In words - one half plus two thirds = seven sixths.
Add: the result of step No. 1 + 5/
4 = 7/
6 + 5/
4 = 7 · 2/
6 · 2 + 5 · 3/
4 · 3 = 14/
12 + 15/
12 = 14 + 15/
12
= 29/
12
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(6, 4) = 12. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 6 × 4 = 24. In the next intermediate step, the fraction result cannot be further simplified by canceling.
In words - seven sixths plus five quarters = twenty-nine twelfths.
<em>hope it helps...</em>
<em>correct me if I'm wrong...</em>
Answer:
sum of interior angles of triangle are 180°.
<h3>hope it helps.</h3><h3>stay safe healthy and happy..</h3>
