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3 years ago

The ratio of boys to girls in the 6th grade is 2:3 . if there are 24 boys,how many girls are there ?

Mathematics

2 answers:

11Alexandr11 [23.1K]3 years ago

5 0

Answer:

Step-by-step explanation:

24/2 and then that times 3

scoundrel [369]3 years ago

5 0

Answer: 36 girls

Step-by-step explanation:

In a ratio, if possible, simplify first. Once the ratio is simplified you can multiply both numbers by the same number and the ratio will remain a ratio (which can be simplified). In this case, we can divide 24 by 2, because there are 24 boys in a ratio of 2 boys to 3 girls. The result is 12, and when we multiply 12 by 3 (the ratio for girls) we get 36. Therefore, the answer is 36 girls.

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Answer:

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Rasek [7]

Answer:

= a⁸/b⁻¹⁰

Step-by-step explanation:

Simplify the expression

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3 years ago

4,4,5,7,10,14 whats next

OleMash [197]

The next number would be 19.

Each number adds one more each time.

For example, 4+0=4, 4+1=5, 5+2=7, 7+3=10, 10+4=14, 14+5=19
Hopefully this makes sense, its kind of hard to explain.

Hope this helps :)

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3 years ago

The null hypothesis for an ANOVA is that all treatments/samples come from populations with the same mean. The alternative hypoth

LenKa [72]

Answer:

Alternative hypothesis: "AT LEAST ONE" of the population means is different from the others

Step-by-step explanation:

Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".

The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"

If we assume that we have n groups and we want to check if the population means are equal, th best way to check this it's with an ANOVA test.

The hypothesis for this case are:

Null hypothesis: $\mu_{1}=\mu_{2}=\dots =\mu_{n}$

Or in words:

Null hypothesis: All treatments/samples come from populations with the same mean

Alternative hypothesis: Not all the means are equal $\mu_{i}\neq \mu_{j}, i,j=1.2,\dots ,n$

Or we can say:

Alternative hypothesis: "AT LEAST ONE" of the population means is different from the others

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3 years ago