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In-s [12.5K]
2 years ago
6

Michael and Mindy are working on a project about names. Using a phone book, Michael randomly selected ten people and recorded ho

w many letters their first names had. Then, he found the median number of letters. In all, he took 100 such samples. Mindy did the same with last names. The results are in the box plots below. Which statement is most accurate?
A. About 75% of the time, the median number of letters from the samples of first names was greater than or equal to 5. About the same percentage of the time, the median number of letters from the samples of last names was less than or equal to 5.



B. About 75% of the time, the median number of letters from the samples of first names was less than or equal to 6. About the same percentage of the time, the median number of letters from the samples of last names was greater than or equal to 6.


C. About 50% of the first names that were selected had either 5 or 6 letters. About the same percentage of last names that were selected had either 6 or 7 letters.


D. About 25% of the first names that were selected had fewer than 5 letters, while all of the last names that were selected had at least 5 letters.

Mathematics
1 answer:
Harman [31]2 years ago
4 0

Answer: A. About 75% of the time, the median number of letters from the samples of first names was greater than or equal to 5. about the same percentage of the time, the median number of letters from the samples of last names was less than or equal to 5

Step-by-step explanation: now i am not sure if this is right but based on the graph I am most likely right so I might be right I might be wrong and I am very sorry if I am wrong

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Now that we know what the slope is, we can write the equation of the line.

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y = 1/2x

Lets find the exponential equation for the line.

y = ab²

1 = ab²

1/a = ab²/a

1/a = b²

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<em>A graph of the coordinates will be below.</em>

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3 years ago
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In The autumn 40% of the leaves on a tree are yellow and 24% of them are green the remaining 72 leaves are half yellow how many
Charra [1.4K]

Percentage of yellow leaves on a tree during Autumn = 40%

Percentage of green leaves on a tree during Autumn = 24%

Percentage of half yellow leaves on the tree during Autumn :

=  \tt100 - 40 + 24

= \tt 100 - 64

= \tt 36 \%Thus, the percentage of half yellow leaves on the tree during Autumn = 36%

Number of half yellow leaves on the tree = 36%

Let the total number of leaves on the tree be x.

Which means :

=  \tt36 \% \: of \: x = 72

=  \tt \frac{36}{100}  \times x = 72

=  \tt \frac{36 \times x}{100}  = 72

=  \tt \frac{36x}{100}  = 72

= \tt 36x = 72 \times 100

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= \tt x =  \frac{7200}{36}

\color{plum} =  \tt \: x = 200

Thus, total number of leaves on the tree = 200

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=  \tt40 \% \: \:  of \: \:  200

=  \tt \frac{40}{100}  \times 200

= \tt   \frac{40 \times 200}{100}

= \tt  \frac{8000}{100}

\color{plum}  \tt = 80 \: yellow \:  \: leaves

Thus, total number of yellow leaves on the tree = 80

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Answer:

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