2Pallie2
11.04.2020 •
Mathematics
According to the chart, from 1986-1996, unintentional drug overdose deaths per 100,000 population began to rise. The numbers for each year are, roughly, 2, 1, 2, 2, 1, 2, 2, 3, 3, 3, 3. What is the mean of these statistics? 24 2.18 24.18 2
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Ответ:
2.18
Step-by-step explanation:
The mean is the most familiar average. It is defined as a value obtained by dividing the sum of all observations by their number. It is calculated as
Mean = Sum of all the observations/ Number of the observations
Mean= x₁+x₂++xₐ/n
Where x₁,x₂,,xₐ refer to different values of x and n is the sample size.
Mean= 2+1+2+2+2+2+1+3+3+3+3/11= 24/11= 2.18
The mean may correspond to a population or a sample from a population.
The population mean is a fixed quantity where as the sample mean is a variable quantity because different samples from the same population tend to have different means.
Ответ:
One solution was found :
b < 2
Explanation:
Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :
7*b-4-(10)<0
Step by step solution :
Step 1 :
Pulling out like terms :
1.1 Pull out like factors :
7b - 14 = 7 • (b - 2)
Equation at the end of step 1 :
Step 2 :
2.1 Divide both sides by 7
Solve Basic Inequality :
2.2 Add 2 to both sides