Answer:
a) x=12
b) x=8.71
c) x=10.95
d) x=3.92
e) x=5.152
Step-by-step explanation:
a) x=12.
To have a probability of 0.5, x must be the mean of X.
b) x=8.71
c) x=10.95
d) x=3.92
If we define Y=X-12, then
For z=1.96, the probability around the mean is 0.95. Then:
e) x=5.152
As in the question d, the area around the mean now is 0.99. This happens when z=2.576. Then:
Answer:
about 154.3
Step-by-step explanation:
draw the lines down all the ways that it is equal on each side
Yes? no? what? ……… pls explain
Substitute for the values of x and then, solve the equation so using one another.