Using the Empirical Rule, it is found that the proportion of people in a population with IQ scores between 80 and 140 is of 0.95 = 95%.
<h3>What does the Empirical Rule state?</h3>
It states that, for a normally distributed random variable:
- Approximately 68% of the measures are within 1 standard deviation of the mean.
- Approximately 95% of the measures are within 2 standard deviations of the mean.
- Approximately 99.7% of the measures are within 3 standard deviations of the mean.
Considering the mean of 110 and the standard deviation of 15, we have that:
These values are both the most extreme within 2 standard deviations of the mean, hence the proportion of people in a population with IQ scores between 80 and 140 is of 0.95 = 95%.
More can be learned about the Empirical Rule at brainly.com/question/24537145
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Answer:
x/2-3-(13)=0
Step-by-step explanation:
Answer:
B. 10 is your answer.
Step-by-step explanation:
What you do is you have to look at what you are given and if you times them together it equals 100.
10 x 10 = 100 so...
B. 10 is your answer.
7x-2x+15=10
5x+15 = 10
- 15 (on both sides, cancels out on the left side)
5x= -5
÷5 (on both sides, cancels out on the left)
x = -1
I hope that helped! ☺♥