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Zanzabum
2 years ago
5

Is 2/5 a natural number

Mathematics
1 answer:
s344n2d4d5 [400]2 years ago
6 0
Natural numbers are counting numbers. Natural numbers cannot be a fraction with a different numerator and denominator when simplified. Therefore 2/5 is not a natural number.
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5 0
2 years ago
Twenty percent of 150 is
Svetlanka [38]
20% of 150 is 30 

Change the percentage into a decimal by dividing it over 100:

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6 0
3 years ago
Elephant<br> A. 30 kilograms<br> B. 90 grams<br> C. 5,000 grams<br> D. 5,000 kilograms
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2 years ago
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In the largest clinical trial ever​ conducted, 401,974 children were randomly assigned to two groups. The treatment group consis
BARSIC [14]

Answer:

The requirements for the hypothesis test does satisfied the method for testing the claim that from two population proportions the rate of polio is less for children given the salk vaccine.

Step-by-step explanation:

The percentage of children in the treatment group was:

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The percentage of children given placebo was:

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The percentage of children that developed polio in the placebo group:

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The percentage difference between the two group:

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Therefore:

The amount of children used for each group was almost divided into half of the total amount of children. The test revealed although very small percentages of the both group developed polio, 68.62% more children given placebo than the children that was given the salk vaccine. Therefore, the study shows that the rate of polio is less for children given the salk vaccine and the the hypthesis test is satisfied.

6 0
2 years ago
Please help :D &lt;3. Do not understand this one.
Shtirlitz [24]
Sorry for my messy handwriting but this is the answer

8 0
3 years ago
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