a/c = d/a
you would cross multiply to get aa = cd
aa = a^2
so you would have a^2 = cd
Using the Empirical Rule, it is found that her finishing time will be between 70 and 82 seconds in 95% of her races.
<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.
In this problem, the mean is of 76 seconds and the standard deviation is of 3 seconds, then:
76 - 2 x 3 = 70.
76 + 2 x 3 = 82.
Which means that values between 70 and 82 seconds are within 2 standard deviations of the mean, hence the percentage is of 95%.
More can be learned about the Empirical Rule at brainly.com/question/24537145
I need more information. Please explain more
Step-by-step explanation:
what i understand is x is a axis
Answer:
- you can scrap your knee if you don't have knee pads
- you can get hit with a ball if you don't stay away from the net
- be careful of your soundings because you could hit someone
- cover your mouth when your coughing and playing at the same time
- keep your eyes one the ball
Step-by-step explanation:
