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ANEK [815]
2 years ago
10

Helpp please will mark brainlest

Mathematics
2 answers:
hram777 [196]2 years ago
8 0

Answer:

what do you need help with?

Step-by-step explanation:

tia_tia [17]2 years ago
8 0

Answer:

I will try to help you on the other question you posted. The one with the picture.

Step-by-step explanation:

You might be interested in
Life Expectancies In a study of the life expectancy of people in a certain geographic region, the mean age at death was years an
Sphinxa [80]

Answer:

The probability that the mean life expectancy of the sample is less than X years is the p-value of Z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}, in which \mu is the mean life expectancy, \sigma is the standard deviation and n is the size of the sample.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

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

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

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 p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

We have:

Mean \mu, standard deviation \sigma.

Sample of size n:

This means that the z-score is now, by the Central Limit Theorem:

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

Find the probability that the mean life expectancy will be less than years.

The probability that the mean life expectancy of the sample is less than X years is the p-value of Z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}, in which \mu is the mean life expectancy, \sigma is the standard deviation and n is the size of the sample.

8 0
2 years ago
How do you write 14.8 as a mixed fraction<br> Step by step method please?
lisabon 2012 [21]
14.8=14+0.8\\\\0.8=\dfrac{8}{10}=\dfrac{8:2}{10:2}=\dfrac{4}{5}\\\\therefore\\\\14.8=14+\dfrac{4}{5}=\boxed{14\frac{4}{5}}
5 0
3 years ago
Greg has only nickels and dimes in his money box. He knows that he has more than $10 in the box. Let x represent the number of n
Andrews [41]

Answer: Draw a dashed line to represent the graph of , and shade the portion above the line for positive values of x and y

Step-by-step explanation: Let

x------> the number of nickels in the box

y------->the number of dimes in the box

we know that

so

Multiply by  both sides

-----> inequality that represent the situation

The solution of the inequality is the shaded area above the dashed line for positive values of x and y

The equation of the dashed line is

therefore

the answer is

Draw a dashed line to represent the graph of , and shade the portion above the line for positive values of x and y

4 0
2 years ago
28340 divided by 65 equals what<br><br><br> in need help ASAP please HELPPPP!!!!!!!!!!!!!
I am Lyosha [343]

Answer:

436

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the equation of the asymptote for this function?
77julia77 [94]

The equation of the horizontal asymptote for this function f(x) = (1/2)^x + 3 is option D y = 3.

<h3>When do we get horizontal asymptote for a function?</h3>

The line y = a is horizontal asymptote if the function f(x) tends to 'a' from the upside of that line y = a, or from downside of that line.

The function is given as;

f(x) = (1/2)^x + 3

The function is Exponential functions.

Exponential functions have a horizontal asymptote.

The equation of the horizontal asymptote is option D y = 3.

Learn more about horizontal asymptotes here:

brainly.com/question/2513623

#SPJ1

7 0
2 years ago
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