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Degger [83]
3 years ago
6

Macy wants to know if the number of words on a page in her grammar book is generally more than the number of words on a page in

her math book. She takes a random sample of 25 pages in each book, then calculates the mean, median, and mean absolute deviation for the 25 samples of each book. Mean Median Mean Absolute Deviation Grammar 49.7 41 8.4 Math 34.5 44 1.9 She claims that because the mean number of words on each page in the grammar book is greater than the mean number of words on each page in the math book, the grammar book has more words per page. Based on the data, is this a valid inference? No, because there is a lot of variability in the grammar book data. Yes, because there is a lot of variability in the grammar book data. Yes, because the mean is larger in the grammar book. No, because the mean is larger in the grammar book.
Mathematics
1 answer:
dybincka [34]3 years ago
6 0

yes, because there is a lot of variability in the grammar book data.

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your friend is Graphing the point (5,3) the first step is to start at the organ and go 5 spaces. which statement about his metho
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Moving 5 spaces

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Although your friend is correct in moving 5 spaces, they don't specify which direction they move in. They could be moving left, right, up, or down.

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2/5g+3h-6 when g=10 and h=6
faust18 [17]
<span>2/5g+3h-6 when g=10 and h=6

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</span><span>= 4 + 18 - 6
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Use the graph to answer the question.
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You make and sell triangular flags. Each flag has a base of 3.5 feet and a height of 2.5 feet. Fabric for the flags costs $0.40
AlexFokin [52]

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Step-by-step explanation:

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One number is larger than another by 9. If the greater number is increased by 10, and the lesser number is tripled, the sum of t
kkurt [141]

Answer:

The larger number is -6, the smaller number is -15

Step-by-step explanation:

We have two numbers, a and b.

We know that one number is larger than another by 9.

Then we can write:

a = b + 9

then a is larger than b by 9 units.

If the greater number is increased by 10 (a + 10) and the lesser number is tripled (3*b), the sum of the two would be -41:

(a + 10) + 3*b = -41

So we got two equations:

a = b + 9

(a + 10) + 3*b = -41

This is a system of equations.

One way to solve this is first isolate one variable in one of the two equations:

But we can see that the variable "a" is already isolated in the first equation, so we have:

a = b + 9

now we can replace that in the other equation:

(a + 10) + 3*b = -41

(b + 9) + 10 + 3*b = -41

now we can solve this for b.

9 + b + 10 + 3b = -41

(9 + 10) + (3b + b) = -41

19 + 4b = -41

4b = -41 -19 = -60

b = -60/4 = -15

b = -15

then:

a = b + 9

a = -15 + 9 = -6

a = -6

7 0
2 years ago
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