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Luden [163]
3 years ago
12

I need help, I really don’t understand this topic

Mathematics
1 answer:
alexgriva [62]3 years ago
3 0

Answer:

Hi, I'm a tutor and I can help you with all your assignments. Just message me here https://toplivewriters.com . I'm online 24/7

Thanks.

Step-by-step explanation:

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Jamie is playing baseball. He gets a hit 7 out of 9 times at bat. What is the experimental probability that Jamie will get a hit
Varvara68 [4.7K]

Answer:

The experimental probability is 7/9

Step-by-step explanation:

In this question, we are told to give the probability that Jamie will get a hit his next time at bat.

Now, looking at the information in the question, we are told that he hits 7 out of 9.

The experimental probability that he would hit his next time at bat is simply 7/9

7 0
4 years ago
One year, many college-bound high school seniors in the U.S. took the Scholastic Aptitude Test (SAT). For the verbal portion of
Butoxors [25]

Using the normal distribution, it is found that 62.46% of students would be expected to score between 350 and 550.

<h3>Normal Probability Distribution</h3>

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It 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, which is the percentile of X.

In this problem, the mean and the standard deviation are respectively, given by: \mu = 425, \sigma = 110

The proportion of students that would be expected to score between 350 and 550 is the <u>p-value of Z when X = 550 subtracted by the p-value of Z when X = 350</u>, hence:

X = 550:

Z = \frac{X - \mu}{\sigma}

Z = \frac{550 - 425}{110}

Z = 1.14

Z = 1.14 has a p-value of 0.8729.

X = 350:

Z = \frac{X - \mu}{\sigma}

Z = \frac{350 - 425}{110}

Z = -0.68

Z = -0.68 has a p-value of 0.2483.

0.8729 - 0.2483 = 0.6246

62.46% of students would be expected to score between 350 and 550.

More can be learned about the normal distribution at brainly.com/question/24663213

7 0
2 years ago
Expand the polynomial 6x(x–3)–x(2–x)
tester [92]

Please see the attached picture for full solution

Hope it helps

Good luck on your assignment

Stay safe

4 0
3 years ago
Read 2 more answers
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jenyasd209 [6]
The simple answer to your question is -36b-27
3 0
3 years ago
Read 2 more answers
Write the expression as the sine, cosine, or tangent of an angle. Sin 9x cos x-cos 9x sinx
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Hint:  \bf sin({{ \alpha}} + {{ \beta}})=sin({{ \alpha}})cos({{ \beta}}) + cos({{ \alpha}})sin({{ \beta}})&#10;\\ \quad \\&#10;&#10;sin({{ \alpha}} - {{ \beta}})=sin({{ \alpha}})cos({{ \beta}})- cos({{ \alpha}})sin({{ \beta}})\\\\&#10;-----------------------------\\\\&#10;thus\qquad sin(9x)cos(x)-cos(9x)sin(x)=\boxed{?}
4 0
3 years ago
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