We have the following data set:
2,7,15,3,12,9,15,8,3,10
The range is the difference between the highest and lowest values in the set, to find the range, order the data set from least to greatest.
2,3,3,7,8,9,10,12,15,15
Then,

Mean is represented by the following expression:


Population variance formula looks like this:

Then, substituting:

For the standard deviation:
I think its either b or c
Answer:
A=52.8 miles (approximately)
Step-by-step explanation:
We can assume that this triangle is not a right angle, therefore we cannot use Pythagorean theorem. Let's use the Law of Sines:

Where A is unknown, a=28 miles, b=32 miles, B=87°
Therefore by law of sines we have:

By multiplying 28 to Isolate sin(A) we have:

To cancel out sine on the right, we must multiply both by the inverse sine and so:

Each person will get 12 dollars
Step-by-step explanation:
Given
Total amount = 85 dollars
Total people = 7
As it has to be divided among 7 people, the total amount will be divided by 7
So,
Each person will get:

Rounding off to nearest whole number
12 dollars each with 1 dollar remaining
Hence,
Each person will get 12 dollars
Keywords: Dollars, Fractions
Learn more about fractions at:
#LearnwithBrainly
Answer:
19,25
Step-by-step explanation:
chia hi