Answer:
50.28 cm
Step-by-step explanation:
r= 8cm
Circumference=
=
=50.28cm
IT IS C ..................................
According to the empirical rule, z-scores, and supposing a normal distribution, a number with a z-score of 0 has an estimated percentile rank of 50.
<h3>Define the term empirical rule in normal distribution?</h3>
A statistical principle known as the empirical rule, also known as the three rule or 68-95-99.7 rule, holds that with a normal distribution, mostly all observed data will lie around three standard deviations (signified by σ ) of the mean or average (signified by µ ).
- In accordance with the Empirical Rule, 99.7% of data that are found to have a normal distribution fall around 3 standard deviations from the mean.
- According to this formula, 68% of the data are within one standard deviation of the mean, 95% are within two deviations, and 99.7% are within three standard deviations.
Thus, as per the empirical rule, z-scores, and supposing a normal distribution, a number with a z-score of 0 has an estimated percentile rank of 50.
To know more about the empirical rule, here
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Answer:
<u>The probability that Julia makes at least one successful throw is 90%</u>
Step-by-step explanation:
1. Let's review the information provided to us to help Julia to answer the question correctly:
Probability that Julia misses the first shot = 50%
Probability that Julia makes the first shot = 50%
When she misses on the first shot, she misses the second shot 20% of the time. Therefore after missing the first shot, she makes the second shot 80% of the time.
Probability that Julia misses both shots = 50% * 20% = 0.5 * 0.2 = 0.1 = 10%
2. What is the probability of making at least one successful throw?
Probability of making at least one successful throw = 1 - (Probability that Julia misses both shots)
Probability of making at least one successful throw = 100% - 10%
<u>The probability that Julia makes at least one successful throw is 90%</u>
Answer:
46.8
Step-by-step explanation:
