HELP PLEASE? EXPLAIN IT a bit thanks will give medal and brainliest i need 2 answers

Mathematics

2 answers:

n200080 [17]3 years ago

7 0

The median is 32 or 36 the range is 15 and the mean is 35.11... Hope this helps at all :3

pshichka [43]3 years ago

3 0

The mean is all the numbers added up and then divided by how many x's there are. In this case, it's 27+29+32+32+36+38+38+42+42 = 345, then you divide it by 9 (the number of x's) and you get 38.33

The median you be the number in the center of the string of numbers, 36 in this number line, because there are nine numbers total and 36 has four numbers on each side
27, 29, 32, 32, 36, 38, 38, 42, 42

The range is the biggest number minus the smaller number, 42-27

So the range is 15

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3 years ago

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A certain species of bird is in danger of becoming extinct. There were 1500 birds in 2000 and they are

melamori03 [73]

a) If this trend continues, how many birds will be left by 2010 will be 525

b) The birds would there have been in 1990 will be 2475

<h3>What is rate of increase?</h3>

Rate of increase or decrease is defined as the increment or decrement in any quantity over a period of time constantly.

Here we have the data that:

There were 1500 birds in 2000 and they are decreasing at an annual rate of 6.5%.

a) If this trend continues, how many birds will be left by 2010

{1500x6.25}/{100}=97.5

So the bird decrement in the one year will be =97.5 so it will be in the 10 years or upto 2010 will be

97.5x10=975

So the birds left till 2010 will be:

Q=1500-975=525

b)The birds would there have been in 1990 will be:-

=1500+975=2475

Hence If this trend continues, how many birds will be left by 2010 will be 525.The birds would there have been in 1990 will be 2475

To know more about Rate of increase follow

brainly.com/question/11360390

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2 years ago

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4 years ago

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