Answer:
m = 
Step-by-step explanation:
Given
x = b + my ( subtract b from both sides )
x - b = my ( divide both sides by y )
= m
Answer:
Equation 1 is the equation which represents the graph.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Answer:

And the z score for 0.4 is

And then the probability desired would be:

Step-by-step explanation:
The normal approximation for this case is satisfied since the value for p is near to 0.5 and the sample size is large enough, and we have:


For this case we can assume that the population proportion have the following distribution
Where:


And we want to find this probability:

And we can use the z score formula given by:

And the z score for 0.4 is

And then the probability desired would be:
