Speed = distance / time
speed = 170/2.5
speed = 68 km per hr
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 = 4, y = 2
Step-by-step explanation:
Given quadrilateral is a parallelogram. Diagonals of a parallelogram bisects each other.
Your answer would be:
f(8)= 68,594
f(11)= 91,299
f(2)= 38,720
f(17)= 161,743
