Step-by-step explanation:
3x + 10 < 3
3x + 7 < 0
3x < -7
x < -7/3 = -2.3333...
or
2x - 5 >= 5
2x >= 10
x >= 5
x < -7/3 or x >= 5
There are 60 minutes in an hour and percent means per one hundred so:
p/100=18/60
p=1800/60
p=30%
Considering that the mean of the normal distribution is the same as the median, the median is of 88%.
<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.
For the normal distribution, the median is the same of the mean, that is, the median is of 88%.
More can be learned about the Empirical Rule and the normal distribution at brainly.com/question/24537145
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Answer:
91/18
Step-by-step explanation:
