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:

Answer:
Y = -4. Hope this helps
Step-by-step explanation:
Answer:
ababababababababbbababbbababbababaaaaaabababbababab
Step-by-step explanation:
hru and thank u for this question
Answer:
5
Step-by-step explanation:
Lets say the first odd integer is n. The next odd integer will be n + 2 then the next is n + 4.
The sum of the 3 integers is 9 so
n + n+2 + n+4 = 9
3n + 6 = 9
n = 1. <-- the first integer
The greatest is n + 4 = 5
For this case we have the following expressions:

Rewriting the second equation we have:

It is observed that by multiplying the first equation by 2, the second equation is obtained.
Thus, the equations are linearly dependent and since the lines are equal then they are intercepted in infinite points. Therefore, the system has endless solutions.
Answer:
Option D