Answer:
50%, 68.26%, 95.54%
Step-by-step explanation:
Let X be the day care costs
X is N(10000, 2000)
Since normal distribution is symmetrical about the mean we get
above 10000, exactly 50% of day care cost would be .
Between 8000 and 12000,
=
Between 6000 and 14000
%
Answer:
The mid point of ST is (1,5) and ST = 10 units
Step-by-step explanation:
It is given that,
S(-3,2) and T(5,8). We need to find the coordinates of the midpoint of ST and also ST.
Let (x,y) be the mid point of ST. Using mid-point formula we get :
We have, x₁ = -3, x₂ = 5, y₁ = 2 and y₂ = 8
So,
(1,5) is the midpoint of ST.
Using distance formula to find ST as follows :
Hence, the mid point of ST is (1,5) and ST = 10 units.