This is a combination since the order doesn't matter
C(15, 6) = (15 * 14 * 13 * 12 * 11 * 10)/(6 * 5 * 4 * 3 * 2 * 1)
C(15, 6) = 3603600/720
C(15, 6) = 5005 different combinations of votes
X*0.2-7=3
+7 +7
x*0.2=10
divide by 0.2 on both sides
x=50
48.8 megabytes. When the download is 17.5% complete, have been downloaded 48.8 megabytes.
The key to solve this problem is using the rule of three.
If 279Mb -------------> 100%
x <------------- 17.5%
x = [(279 megabytes)(17.5)]/100
x = 48.825 megabytes
Round to the nearest tenth 48.8 megabytes.
Answer:
(96.91, 101.09)
Step-by-step explanation:
To calculate the interval, you require the Z value at 95% confidence interval. The Z value is 1.96. The formula to calculate the confidence interval:
Where X is the mean and s is the standard deviation and x the sample size:
The interval is (96.91, 101.09)
