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Sever21 [200]
3 years ago
9

Esther wants to know if the number of words on a page in her language arts book is generally more than the number of words on a

page in her social studies book. She takes a random sample of 25 pages in each book and then calculates the mean, median, and mean absolute deviation for the 25 samples of each book. Book Mean Median Mean Absolute Deviation Language arts 78.5 60 14.2 Social studies 68.7 65 9.8 She claims that because the mean number of words on each page of the language arts book is greater than the mean number of words on each page of the social studies book, the language arts book has more words per page. Based on the data, is this a valid inference? Yes, because there is a lot of variability in the language arts book data No, because there is a lot of variability in the language arts book data Yes, because the mean is larger in the language arts book No, because the mean is larger in the social studies book
Mathematics
1 answer:
pychu [463]3 years ago
6 0
<span>No, because the mean is larger in the social studies book</span>
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The ratio of red jelly beans to yellow jelly beans in a dish is 3:4. If Greg eats 3 red jelly beans and 6 yellow ones, the ratio
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Answer:

63

Step-by-step explanation:

3×9= 27

4×9= 36

27+36= 63

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)) In a right triangle, a and b are the lengths of the legs and c is the length of the
kondor19780726 [428]

Answer:

5.66 inches

Step-by-step explanation:

{a}^{2}  +  {b }^{2}   =   {c}^{2}

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a² + 49 = 81

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a = square root of 32

a = 5.6568 or 5.66 inches

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3 years ago
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The number of cars at a dealership dropped from 64 to 48 after a weekend sale.
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Step-by-step explanation:

64-48 = 16

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8 0
2 years ago
Anybody have the answer?
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3 years ago
If you are dealt 4 cards from a shuffled deck of 52 cards, find the probability of getting two queens and two kings.
Bingel [31]

<u>Given</u>:

If you are dealt 4 cards from a shuffled deck of 52 cards.

We need to determine the probability of getting two queens and two kings.

<u>Probability of getting two queens and two kings:</u>

The number of ways of getting two queens is 4C_2

The number of ways of getting two kings is 4C_2

Total number of cases is 52C_4

The probability of getting two queens and two kings is given by

\text {probability}=\frac{\text {No.of fanourable cases}}{\text {Total no.of cases}}

Substituting the values, we get;

probability=\frac{4C_2 \cdot 4C_2}{52C_4}

Simplifying, we get;

probability=\frac{6 (6)}{270725}

probability=\frac{36}{270725}

probability=0.000133

Thus, the probability of getting two queens and two kings is 0.000133

7 0
3 years ago
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