Answer:
2/3 ≈ 0.6667
Step-by-step explanation:
apply soh cah toa
sine=opposite/hypo
sine=4/6
sine=2/3
4/12 of the fans are kids because 1/4 can be multaplied by 3 to get 3/12
the answer ur looking for is
y + 3
Just divide 78 billion by 78 thousand
Answer:
Range =94
σ² = 1,141.564
Standard Deviation = 33.78703
Step-by-step explanation:
First off to find the range, we find the highest value and subtract it to the lowest value. In this situation the values are:
Highest = 99
Lowest = 5
Range = 99 - 5
Range = 94
Now to find the variance of the sample data set, we first need to find for the mean of the data.
The mean of the data with be the sum of all the numbers in the data set divided by the number of samples.
Mean = 
Mean = 
Mean = 
Now to find the variance we simply use the formula:
σ²
σ²
σ²
σ²
Now to find the standard deviation, we take the variance and get the square root of it.
Standard Deviation
Standard Deviation