Answer:
Its B
Step-by-step explanation:
No of teachers in the school = 5
Salaries they make =40000 to 70000
When one of the five teachers reduce salary to 20000/- per year, median may or may not shift one number to the left
Mean will definitely decrease by difference/5 = 4000 dollars
Thus mean will defintely change by reduction of 4000 dollars.
Median has a chance to remain the same or may shift left side one item.
Answer:
NO SOLUTION
Step-by-step explanation:
Here you're asked to solve a system of equations, linear equations in this case.
Since y = 2x, we can subst. 2x for y in the 2nd equation:
-6x + 3(2x) = 16
Combining the x terms results in 0 = 16, which is never true.
Thus, this system of linear equations has NO SOLUTION.
Answer:
Probability that a house has a hot tub given that it has a pool is 55%.
Step-by-step explanation:
We are given that in New York State, 38% of the houses have a pool and 21% of the houses have both a pool and a hot tub.
Let the probability that houses have a pool = P(A) = 0.38
Also, let B = event that houses have a hot tub
Probability that houses have both a pool and a hot tub =
= 0.21
Now, the conditional probability that a house has a hot tub given that it has a pool is given by = P(B / A)
<u>As we know that</u>; P(B / A) =
=
= 0.553 ≈ 55%
Hence, the probability that a house has a hot tub given that it has a pool is 55%.
Answer:
y=2x-2
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(8-4)/(5-3)
m=4/2
m=2
y-y1=m(x-x1)
y-4=2(x-3)
y=2x-6+4
y=2x-2
Answer:
-v
Step-by-step explanation:
The opposite vector is the vector that has the same magnitude of the original vector but points in opposite direction.So the vector -v has the same magnitude as the vector v but points to the opposite direction. Vector -v will start from the point 6 and will end at the point 3.That is opposite of the vector v which starts from point 3 and ends at point 6.
Hence the answer is -v.