Answer:
option (a) is the answer in think
Answer:
The answer is A.
Step-by-step explanation:
By labelling the four points on a coordinate grid and connecting them, you will get the shape of a rectangle.
Answer: A. 5%
Step-by-step explanation:
Given : The chance that they will join the graduate program : p=0.10
The total number of students in the class: n = 400
For this binomial situation :

We assume that this is normal distribution.
Let X be the random variable that represents the students will be joining a graduate program.
Z-score : 
For x= 50 , we have

Using the standard normal distribution table , we have

Hence, the value i.e.closest to the probability that at least 50 students will be joining a graduate program = 5%
I believe it is 500 pounds b cause one out of 5 is less than 500 out of 1000 or 500 pounds
If R = 5z
Then 15 z = 3R so there given 15z=3Y soo R= 5 Y