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3 years ago

How do i find the interquartile range in a dot plot? please help!!!!

Mathematics

1 answer:

jenyasd209 [6]3 years ago

8 0

Answer:

Step-by-step explanation:

1. List out all data from least to greatest

2. Find the median (the middle number)

3. Find the median of the lower part of data (the numbers lesser in value compared to the median; do not include the median while finding this)

4. Do the same with the numbers above the median.

5. Take the medians of the lower numbers and higher and find the difference,

6. Thats your interquartile range

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liberstina [14]

Answer:

188 children and 145 adults were admitted in the park.

Step-by-step explanation:

Given:

The admission fee at an amusement park is $1.50 for children and $4 for adults.

Total $862 collected on a certain day when 333 people enter the park.

Now, to find the children and adults admitted in the park.

Let the number of children admitted be $x.$

And the the number of adults admitted be $y.$

So, the total people enter the park:

$x+y=333\\\\x=333-y\ \ \ ...(1)$

Thus, the total amount collected of the admission fee:

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Substituting the value of $x$ from equation (1):

$1.50(333-y)+4(y)=862\\\\499.50-1.50y+4y=862\\\\499.50+2.50y=862\\\\Subtracting\ both\ sides\ by\ 499.50\ we\ get:\\\\2.50y=362.50\\\\Dividing\ both\ sides\ by\ 2.50\ we\ get:\\\\y=145.$

Thus, the number of adults = 145.

Now, to get the number of children by substituting the value of $y$ in equation (1) we get:

$x=333-y\\\\x=333-145\\\\x=188.$

Hence, the number of children = 188.

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Answer:

B - x=5

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