Answer:
The variance is 53.29 kg²
Step-by-step explanation:
The standard deviation is the square root of the variance.
So
In which problem, we have that:
So
The variance is 53.29 kg²
Yes because they both equal -15 because you actually turn -10+(-5) into a subtraction problem because if there's a + and -, you actually turn it into a minus and the answer is -15.
Answer:
∑E(x
) = 13.49167 floors
Step-by-step explanation:
The expected number of floors no one get off = ∑E(x) where i is from 0 to 23
and E(x) = ∑xP(x)
here x is the indicator of floor where no one gets off, its value is 0 when atleast one person get off on its floor and 1 when when no one gets off.
Now,
P(x=1) = (22/23)¹²
P(x=0) = [1-(22/23)¹²]
Now,
E(x) = ∑xP(x) = 0* [1-(22/23)¹²] + 1*(22/23)¹² =0.586594704
For total number of floors where no one gets off
∑E(x) = E(x₁)+E(x₂)+E(x₃)........................+E(x₂₃)
∑E(x) = 23*0.586594704
∑E(x) = 13.49167 floors
Because 0.24 = 24/100 and 1/4= 25/100 and 0.24 = 24/100 and 2/4/ 50/100=2
and so she missed calcuated and so its wrong.
the correct answer is 0.24<2/4 then 0.24=/2/4
wrong symbol
Answer:
28%
Step-by-step explanation:
So I am assuming the numbers are the number of students.
So 64 + 28+ 52 +56 = 200 students
Assuming the 56 outside the diagram are NOT attending either college.
so 56/200 =28%
