X = sqrt( 4 *(8+4))
x= sqrt(4*12)
x = sqrt(48)
x = 6.928 ( Round the answer as needed)
Answer:
Eleanor's net proceeds would be $1340.16.
Step-by-step explanation:
If Eleanor purchased $2568 worth of stock and paid a 0.5% broker fee, she would have to pay $12.84 for the service, which is what we get when we multiply her initial purchase by the percentage (0.005). When Eleanor sold the stock at $3928, she had to pay a flat fee of $7 for the trade, decreasing her overall profit by $7, or $3921. Subtracting her initial investment from the overall profit gives Eleanor a net proceed of $1340.16.
You would do 180 - 102 to find the answer
Answer:
The 95% confidence interval for the population proportion is (0.778, 0.884).
Step-by-step explanation:
We have to calculate a 95% confidence interval for the proportion.
The sample proportion is p=0.831.
The standard error of the proportion is:

The critical z-value for a 95% confidence interval is z=1.96.
The margin of error (MOE) can be calculated as:

Then, the lower and upper bounds of the confidence interval are:

The 95% confidence interval for the population proportion is (0.778, 0.884).
A full turn is 360 degrees. If you put 180/360 you can simplify the answer to 1/2. 180 degrees of a turn is half of a turn.