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Irina-Kira [14]
3 years ago
8

A mathematics journal has accepted 15 articles for publication. However, due to budgetary restraints only 9 articles can be publ

ished this month. How many ways can the journal editor assemble 9 of the 15 articles for publication?
Mathematics
1 answer:
Katena32 [7]3 years ago
4 0
15!/(15-9)!= 32432400

i hate these so much hope it helps! :)
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Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate
yKpoI14uk [10]

Answer:

a) 0.5588

b) 0.9984

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 24

Standard Deviation, σ = 6.4

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}        

a) P(score between 20 and 30)

P(20 \leq x \leq 30) = P(\displaystyle\frac{20 - 24}{6.4} \leq z \leq \displaystyle\frac{30-24}{6.4}) = P(-0.62 \leq z \leq 0.94)\\\\= P(z \leq 0.94) - P(z < -0.62)\\= 0.8264 - 0.2676 = 0.5588 = 55.88\%

P(20 \leq x \leq 30) = 55.88\%

b) Sampling distribution

Sample size, n = 22

The sample will follow a normal distribution with mean 24 and standard deviation,

s = \dfrac{\sigma}{\sqrt{n}} = \dfrac{6.4}{\sqrt{22}} =1.36

c) P(mean score of sample is between 20 and 30)

P(20 \leq x \leq 30) = P(\displaystyle\frac{20 - 24}{1.36} \leq z \leq \displaystyle\frac{30-24}{1.36}) = P(-2.94 \leq z \leq 4.41)\\\\= P(z \leq 4.41) - P(z < -2.94)\\= 1 - 0.0016 = 0.9984 = 99.84\%

P(20 \leq x \leq 30) =99.84\%

5 0
3 years ago
Jackson is paid $250.for 5<br> days of Work how much IS<br> he paid per day
Svet_ta [14]
$50 per day.
First you divide 250 dollars by 5 then you will get 50 dollars
5 0
2 years ago
Line segments that have the same length are called similar segments. True or false?
guajiro [1.7K]

The statement that line segments that have the same length are called similar segments is false

<h3>How to determine the true statement?</h3>

The statement is given as:

Line segments that have the same length are called similar segments.

As a general rule:

Line segments that have the same length are similar segments.

However, line segments that have the same length are not called similar segments

Instead, line segments that have the same length are called congruent lines

This means that the the statement that line segments that have the same length are called similar segments is false

Hence, the statement that line segments that have the same length are called similar segments is false

Read more about congruent lines at:

brainly.com/question/3168048

#SPJ1

3 0
2 years ago
What transformation occurs to the graph f (x) =2x + 3 if the 3 in the equation is changed to a 5?
kodGreya [7K]
The equation will shift up two points
5 0
3 years ago
In the following two Java output statements, System.out.println("Hello. Welcome to this program."); System.out.print("Tell me yo
BARSIC [14]

The first statement show that after print the statement, the compiler will leave the line and start the next statement on fresh line.

While the second statement show that after print statement the compiler will continue print next statement without drop to another line.

5 0
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