Actual = 6 feet.
Measure = 5.49 feet
Error = 6 - 5.49 = 0.51
% Error = (Error / Actual) * 100%
= 0.51/6 * 100% = 8.5%
Answer:
C. 95%
Step-by-step explanation:
The Empirical Rule 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.
In this problem, we have that:
Mean of 1189 points, standard deviation of 397 points.
Percentage between 395 and 1983 points?
395 = 1189 - 2*397
1983 = 1189 + 2*397
So within 2 standard deviations of the mean, which by the Empirical Rule is approximately 95%, and the answer is option C.
In this situation you would add 9 to the other side of the inequality 2/5x < 9/10+9
2/5x< 9.9
:)
Answer: 583 miles
Step-by-step explanation
To go from Charlotte to Chicago through the way of Cincinnati would just be the sum of both distances.
P(green)=2/10=1/5
P(red, no replacement)=6/9=2/3
So, 1/5(2/3)=2/15
