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kolbaska11 [484]
3 years ago
9

What is the difference between mean and median

Mathematics
2 answers:
Anit [1.1K]3 years ago
4 0

The difference between the mean and median is that the mean is the average number. f.e: 1, 2, 2, 2, 3, 3, 4, 5 - and if you add all those up, the mean would be 3, or 2.

But the median is the number in the middle Number.

What if you have 2 medians, though?

Well, that’s easy to solve IMO.

F.e: 22, 22, 23, 23, 23, 24, 24, 24, 25, 25

The median is either 23 or 24, right?

Okay. That’s simple. But what exactly do we do?

Let me show you:

So get the sum of 23 and 24, which is 47.

Now divide 47 by 2. And what do we get?

23.5.

Now round that, and you get 24. So 24 is the median!

Hope that helps!

babunello [35]3 years ago
4 0

Answer:

mean is the AVERAGE of all numbers

Step-by-step explanation:

because when  you  add up all the numbers then you divide it by the TOTAL NUMBER of NUMBERS!

and a median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average.

hope this helps

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Flying with the wind a plane went 386 km/h. Flying into the same wind the plane only went 318 km/h. find the speed of the plane
zysi [14]

Answer:

Speed of plane  in air is  352 km/hr and speed of wind is 34 km/hr

Step-by-step explanation:

Average speed of plane in with wind = 386 km/h

Average speed of plane against wind = 318 km/hr

Consider the speed of plane in wind be  x km/hr and speed of plane against wind  be  y  km/hr

As such speed of plane in wind would be  x + y km/hr and speed of plane  against wind would be  x - y km/hr. i.e

x+y = 386

x-y = 318

by solving these two equation, we get

2x=704

x= 352 km/hr

y=386 - 352

y= 34 km/hr

Hence, Speed of plane  in air is  352 km/hr and speed of wind is 34 km/hr

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4 years ago
Estimate the product. Choose a method 33 X 76
Serhud [2]
Use the tens.Try 30x80. 76 rounds up to 80 and 33 rounds down to 30.
3 0
3 years ago
Read 2 more answers
Which expression is equivalent to 5(4x+3) - 2x
Troyanec [42]

Good evening  

Answer:

  1. 18x + 15
  2. 3(6x + 5)

Step-by-step explanation:

Unfortunately you didn’t provide the expressions to chose from ,however we can get other expressions From this one like this:

5(4x+3) - 2x = 20x + 15 - 2x

                   = (20x - 2x) + 15

                   = 18x + 15

we can also write 18x + 15 = 3×(6x) + 3×(5x) = 3(6x + 5)

then

these two expressions :

  • 18x + 15
  • 3(6x + 5)

are equivalent to 5(4x+3) - 2x

__________________________________________

:)

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Answer:

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Step-by-step explanation:

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Eric had a total of 40 nickels and dimes if the total value of the coins is 330 cents, how many nickels and dimes does he have?
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Answer:

165 of nickels and 165 of dimes

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