Answer:
1/7 ;
0.0034
Step-by-step explanation:
Given that:
X = 1/14, 1/7, 3/14
n = number of observations = 3
Since, probability of X is equally likely ;
P(X) = Σp(x) = 1 ; p(x) = 1/n = 1/3
The mean, m ;
Σx*p(x) = (1/3 * 1/14) + (1/3 * 1/7) + (1/3 * 3/14)
= 1/42 + 1/21 + 3/42
= (1 + 2 + 3) / 42
= 6 / 42
= 1/7
The variance :
Σx²*p(x) - m²
((1/3) * (1/14)^2) + ((1/3) * (1/7)^2) + ((1/3) * (3/14)^2) - (1/7)^2
= 0.0238095 - 0.0204081
= 0.0034014
= 0.0034
Answer:
x = 20.4
Step-by-step explanation:
x/0.6 = 17/0.5
0.5x = 17 (0.6)
0.5x = 10.2
0.5x/0.5 = 10.2/0.5
x = 20.4
CHECKING MY WORK:
20.4/0.6 = 34
17/0.5 = 34
34 = 34
Answer:
The quantity of the mark is $11.20
Step-by-step explanation:
Given that:
Amount paid by store for cell phone = $56
The store marks the price at 20%.
Quantity of the mark = 20% of 56
Quantity of the mark = 
Quantity of the mark = 0.2 * 56
Quantity of the mark = $11.20
Hence,
The quantity of the mark is $11.20
Answer:
it's not -1/2 because that would mean down 1 right 2 I think it's 1/4 because it up 1 right 4
