Answer:
the common difference is 10
Step-by-step explanation:
<span>Distance of Jose’s height from mean: 2 in.
</span><span>Distance of Jamal’s height from mean: -2.3in.</span>
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
#SPJ1
Answer: 24 points
Work Shown:
k = amount of points Katrina scored
k = 8
s = amount of points Sarah scored
s = 3k, since she scored three times as many
s = 3*8
s = 24 points
Answer:
x^3+4x^2+5x+2
Step-by-step explanation:
