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Effectus [21]
3 years ago
10

Assume that 1200 births are randomly selected and exactly 595 of the births are girls. Use subjective judgment to determine whet

her the given outcome is unlikely, and also determine whether it is unusual in the sense that the result is far from what is typically expected. Determine whether exactly 595 girls out of 1200 randomly selected births is unlikely.
A. It is not unlikely because girls are slightly less common than boys.
B- t is unlikely because it is not 600 as expected.
C. It is unlikely because the probability of this particular outcome is very small, considering all of the other possible outcomes.
D. It is not unlikely because 595 is about half of 1200.

Determine whether exactly 595 girls out of 1200 randomly selected births is unusual.
A. It is unusual because girls are more common than boys.
B. It is unusual because it is not 600 as expected.
C. It is not unusual because 595 girls out of 1200 births is the only possible outcome.
D. It is not unusual because 595 is about the number of girls expected.
Mathematics
1 answer:
emmainna [20.7K]3 years ago
6 0

Answer:

Lets assume that 1200 births are randomly selected and exactly 595 of the births are girls.

In percentage this is : \frac{595}{1200}\times100=49.58\%

This is approx 50%. We can say that almost random 50% are girls.

So, It is unlikely because the probability of this particular outcome is very​ small, considering all of the other possible outcomes.

Part B: It is not unusual because 595 is about the number of girls expected.

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3 years ago
Whats the answer to these? (These are called Proper fractions.)
Darya [45]

Answer to the first question: 7/10ths of a mile

Explaination: When adding fractions, you need to have a common denominator. Since dividing 3/10 by 2 to get a denominator of 5 makes 3 a decimal, it's easier to multiply 2/5 by 2 to get a denominator of 10. You do the same to the top that you do to the bottom: \frac{2*2}{5*2} = \frac{4}{10}. From there, just add 4/10 and 3/10 to get the answer: 7/10ths of a mile.

Answer to the second question: Daniel read three (3/10) more books

Explaination: Since you can't evenly multiply 5 or 2 to get the opposite number, it's easier to multiply to the lowest common multiple. The easiest way to find that is to multiply both denominators (5*2=10). You'll have to multiply the numerator by the same amount you multipled the denominator by. For Daniel, that would mean: \frac{4*2}{5*2} = \frac{8}{10}. For Edgar, that would mean: \frac{1*5}{2*5} = \frac{5}{10}. So, Daniel read 3 more books than Edgar.

Answer to the third question: 2/4 mile (or 1/2 a mile)

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5 0
3 years ago
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Arah went to the grocery store and bought 4 loaves of bread and 1 gallon of milk for $12. The next week, Sarah bought 2 loaves o
sergejj [24]

Answer:

Here, b represents one loaf of bread and m represents the one gallon of milk.

As per the statement:

Arah went to the grocery store and bought 4 loaves of bread and 1 gallon of milk for $12.

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It is also given that the next week, Sarah bought 2 loaves of bread and 3 gallons of milk for $13.50.

⇒2b+3m = 13.50

Then; system of equation :

4b+m = 12                   .....[1]

2b+3m = 13.50           .....[2]

Solve for b and m using above system of equations.

Multiply equation [2] by 2 we get;

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Subtract equation [1] from [3] we get;

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Combine like terms;

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Divide both sides by 4 we get;

b = $2.25

Therefore, cost of one loaf of bread (b) and one gallon of milk (m) are:

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3 0
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Answer:

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8 0
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4(-9*x)

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Final answer: -36x
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