Answer:
True.
Step-by-step explanation:
If we have for a sample of size n=25 a sample variance of 400, the standard error can be written as:
This way of calculating the standard error is the same used for estimating the standard deviation of the sample means for samples of size n=25.
Option ( C ) is the correct answer.
Answer:
$12.50
Step-by-step explanation:
The shop offers a discount, buy 8 pounds for the price of 5.
Answer:
By the math, x = 10°
Here's my issue though, the top angle is x - 15°. That would be an angle of -5° which is impossible.
Step-by-step explanation:
x - 15 + 2x + 25 + 180 - 4x = 180°
combine like terms:
3x - 4x + 190 = 180°
-x = -10°
x = 10°
Step-by-step explanation:
3.9 percent
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