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larisa86 [58]
2 years ago
9

4.5+n is it rational or irrational

Mathematics
1 answer:
nirvana33 [79]2 years ago
5 0

Answer:

4.5 is a rational number, as it can be represented as 9/2. Many important numbers in mathematics, however, are irrational, and cannot be written as ratios.

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There are 5000 undergraduates registered at a certain college. Of them, 448 are taking one course, are taking two courses, 675 a
olga55 [171]

Answer:

Step-by-step explanation:

Hello!

There are some values missing, so I'll find the probability distribution using others as example. Afterwards you can calculate the ones corresponding to this exercise following the same steps.

Considering there are 5000 undergraduates registered in the college.

465 are taking one course

658 are taking two courses

566 are taking three courses

1877 are taking four courses

1344 are taking five courses

90 are taking six courses

First you have to define the variable of interest. To identify it you have to ask yourself the following question: what is the characteristic of this population that is being measured?

The answer is "the number of courses an undergraduate is taking" and this will be the study variable X

X can take values from 1 to 6 courses.

To calculate the probability of each value of X, you have to divide the "number of students taking Xi courses" by "total number of students registered in the college"

For

X=1

P(1)= 465/5000= 0.093

X=2

P(2)= 658/5000= 0.1316

X=3

P(3)= 566/5000= 0.1132

X=4

P(4)= 1877/5000= 0.3754

X=5

P(5)= 1344/5000= 0.2688

X=6

P(6)= 90/5000= 0.018

For this to be a probability distribution the following condition should be met:

F(X)= ∑P(X) = 1

In this example: 0.093 + 0.1316 + 0.1132 + 0.3754 + 0.2688 + 0.018 = 1

I hope this helps!

7 0
3 years ago
Type the correct answer in each box.
nataly862011 [7]

Answer:

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Step-by-step explanation:

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2 years ago
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Salsk061 [2.6K]

Answer:

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Step-by-step explanation:

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2 years ago
Please help me with number 6
Genrish500 [490]
30=(10*3*x)/2
*2 *2
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7 0
3 years ago
Peeta says that because there are 5,280 feet in 1 mile, there are more than 25,000 feet in 5 miles. Is peeta correct? Explain. P
leonid [27]
Peeta is correct because when you multiply 5,280 by 5, you get 26,400 which is more than 25,000.
3 0
3 years ago
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