Hi!
Add the student together to get the number of students
10+4 = 14
Divide the girls by half
4/2 = 2
2/14 is the answer for this question.
<em>Hope this helps! Have an amazing day <3</em>
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Answer:
I think the answer would therefore be F.
I think you forgot to add a photo
Answer: -0.7
Step-by-step explanation:
I hope this helps i don't want you to fail!
Answer:
![\mu = 7.301](https://tex.z-dn.net/?f=%5Cmu%20%3D%207.301)
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:
![Z = \frac{X - \mu}{\sigma}](https://tex.z-dn.net/?f=Z%20%3D%20%5Cfrac%7BX%20-%20%5Cmu%7D%7B%5Csigma%7D)
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
![\sigma = 0.3](https://tex.z-dn.net/?f=%5Csigma%20%3D%200.3)
If the bottles are 8 ounces, what value of µ would give us a 1% probability of putting more than 8 ounces in a bottle (overflowing) normal distribution
This means that Z when X = 8 has a pvalue of 1-0.01 = 0.99. So when X = 8, Z = 2.33.
We want to find ![\mu](https://tex.z-dn.net/?f=%5Cmu)
![Z = \frac{X - \mu}{\sigma}](https://tex.z-dn.net/?f=Z%20%3D%20%5Cfrac%7BX%20-%20%5Cmu%7D%7B%5Csigma%7D)
![2.33 = \frac{8 - \mu}{0.3}](https://tex.z-dn.net/?f=2.33%20%3D%20%5Cfrac%7B8%20-%20%5Cmu%7D%7B0.3%7D)
![8 - \mu = 2.33*0.3](https://tex.z-dn.net/?f=8%20-%20%5Cmu%20%3D%202.33%2A0.3)
![\mu = 8 - 2.33*0.3](https://tex.z-dn.net/?f=%5Cmu%20%3D%208%20-%202.33%2A0.3)
![\mu = 7.301](https://tex.z-dn.net/?f=%5Cmu%20%3D%207.301)