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CaHeK987 [17]
3 years ago
6

The model below represents 4x + (-4) = -2x +8

Mathematics
1 answer:
balandron [24]3 years ago
7 0

Answer:

If asking for <em>x</em>, then x is 2.  If asking for 4x + (-4) or -2x + 8, then the answer is 4.  

Step-by-step explanation:

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A survey found that women's heights are normally distributed with mean 62.7 in, and standard deviation 2.8 in. The survey also f
Viefleur [7K]

Using the normal distribution, we have that:

The percentage of men who meet the height requirement is 3.06%. This suggests that the majority of employees at the park are females.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

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

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation of men's heights are given as follows:

\mu = 69.3, \sigma = 3.9.

The proportion of men who meet the height requirement is is the <u>p-value of Z when X = 62 subtracted by the p-value of Z when X = 55</u>, hence:

X = 62:

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

Z = \frac{62 - 69.3}{3.9}

Z = -1.87

Z = -1.87 has a p-value of 0.0307.

X = 55:

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

Z = \frac{55 - 69.3}{3.9}

Z = -3.67

Z = -3.67 has a p-value of 0.0001.

0.0307 - 0.0001 = 0.0306 = 3.06%.

The percentage of men who meet the height requirement is 3.06%. This suggests that the majority of employees at the park are females.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

8 0
2 years ago
How do you tell someone you like them if you get nervous around them?
TiliK225 [7]

Answer:

Just be yourself.

Step-by-step explanation:

You might get different answers, but this one is something you should definitely do!

Hope this helped...have a great day <3

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3 years ago
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julia-pushkina [17]

Answer:y1=log5/log9 and y2=7-3x

Step-by-step explanation:

3 0
4 years ago
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And air plane took off and reached an altitude of 10,000 feet in 25 minutes how many feet per minute on average did the airplane
viktelen [127]

Answer:

400 feet per minute

Step-by-step explanation:

Take the total number of feet (10,000) and divide by how many minutes it took to reach that altitude.

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3 years ago
What is the distance between -60 and -10 0n a number line?
JulsSmile [24]

Answer: 70

Step-by-step explanation: The absolute value of a number is its distance from zero on the number line. Since absolute value is a distance, it is always greater than or equal to zero.

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