Answer:
So then the correct answer would be:
B) .9996
Step-by-step explanation:
The exact way to solve this problem is using the binomial distribution, assuming that our random variable of interest is "number of students living in apartments" represented by X and ![X \sim Bin(n=600, p =0.4)](https://tex.z-dn.net/?f=%20X%20%5Csim%20Bin%28n%3D600%2C%20p%20%3D0.4%29)
And we want this probability:
So we see that we satisfy the conditions and then we can apply the approximation.
If we appply the approximation the new mean and standard deviation are:
And then ![X \sim N (\mu = 240, \sigma= 12)](https://tex.z-dn.net/?f=%20X%20%5Csim%20N%20%28%5Cmu%20%3D%20240%2C%20%5Csigma%3D%2012%29)
And we are interested on the following probability:
So then the correct answer would be:
B) .9996
Answer:
48
Step-by-step explanation:
1152/24=48
The sum is 15/10 in simplest form it's 3/2 and as a mixed number it's 1 1/2 (one and a half)
A=b+1
a=2b+9
b+1=2b+9
-b from both sides
1=b+9
-9 from both sides
-8=b
b+1
-8+1
-7
You can check your answer...
2b+9
2(-8)+9
-16+9
-7
The smaller is -8 and the larger is -7