The probability is 0.4332.
We want to find the z-scores associated with the ends of the ranges. The z-score for 200 would be 0, since it is 0 away from the mean. To find the z-score of 275 we use the formula:

Using a z-table (http://www.z-table.com) we can find the area under the curve to the left of 1.5 (everything less than that, so every score less than 275). This is 0.9338. However, we only want the range from the mean, 200, up to this point. This means we subtract the area to the left of 200, 0.5 (half of the data goes from the mean left), from this:
0.9338-0.5=0.4338.
Answer:
if the question wants you to round. the answer is 4.
Step-by-step explanation:
f(x)=[x]-5
where x= 8.6
substitute 8.6 for x and you have 8.6-5= 3.6= 4
Answer:
shoukd be x>= 4
Step-by-step explanation:
What are the answer choices?
Answer:
r=12
Step-by-step explanation:
Here, scale is 1 : 30
We have length of scale = 3 in.
So, length of the room is 30 * 3 = 90 inch.
In the same manner, width of room = 30 * 4 = 120 in.
Now, Area = Length * Width
A = 90 * 120
A = 10800 In²
A = 10800 / 144 Ft² [ As 1 Ft² = 144 In² ]
In short, Your Answer would be 75 Ft²
Hope this helps!