It’s the point where the parabola crosses its axis of symmetry
use the Pythagoras theorem method
a squared plus b squared equals c square
Answer:
m = 1.8
Step-by-step explanation:
Given data is as follows :
x 1 2 3 4 5 6
f 1 4 7 m 6 3
We need to find the value of m if the mean of the data is 3.8.
Mean = sum of observations/no. of observations
So,

So, the value of m is equal to 1.8.
Answer:
<4 = 22
Step-by-step explanation:
<4 = x
x + 158 = 180
x = 22