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Yuki888 [10]
3 years ago
5

Look at this set of 10 numbers:

Mathematics
2 answers:
swat323 years ago
8 0
In the original set of numbers, the median is six
But, if six was added to the set, then the median would be six
So the median wouldn't decrease at all
Valentin [98]3 years ago
8 0
The median is the middle number of all the numbers in the data set which are in numerical order.

1st put them in numerical order and close one off from each end until you get to the middle

1 3 4 5 5 7 9 9 9 9

Because there is an even number, there are two numbers so you have to take the average.

(5+7)/2 = 6

For the new number group, add 6 to the list

1 3 4 5 5 6 7 9 9 9 9

Cross one off from each side until you get the middle and the new median is also 6.

Therefore, the median did not decrease, it stayed the same.
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Simplify the following expression:
elena-s [515]

Answer:

3x^2-15y-10x

Step-by-step explanation:

2x-12x-8y+7y+3x^2

-10x-15y+3x^2

3x^2-15y-10x

6 0
2 years ago
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Perry bought 5 nectarines for $4. how many nectarines can amanda buy if she has 16$
Step2247 [10]
Amanda can buy 20 nectarines with $16
8 0
3 years ago
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For a sample of n=64​, the probability of a sample mean being less than 20.5 if u = 21 and sigma = 1.31 is ​(Round to four decim
Svetlanka [38]

Answer:

The mean is usual

Step-by-step explanation:

We have that the mean (m) is equal to 21, the standard deviation (sd) = 1.31 and the sample size (n) = 64

They ask us for P (x <20.5)

For this, the first thing is to calculate z, which is given by the following equation:

z = (x - m) / (sd / (n ^ 1/2))

We have all these values, replacing we have:

z = (20.5 - 21) / (1.31 / (64 ^ 1/2))

z = -3.05

With the normal distribution table (attached), we have that at that value, the probability is:

P (z <-3.05) = 0.0002

The mean is usual because P (x> 20.5) = 1 - P (x <20.5) = 1 - 0.0002 = 0.9998 is a fairly high probability.

6 0
3 years ago
A cone has a height of 8 inches in diameter of 6.4 inches what is the volume of the cone?
maxonik [38]
The volume of the cone is 85.79 since the radius is 3.2
5 0
3 years ago
HELP ME PLEASE ASAP
Mumz [18]
5p + 4g = 42.5 
<span>3p + 6g = 34.5 </span>

<span>15p + 12g = 127.5 </span>
<span>-6p - 12g = -69 </span>
<span>9p = 58.5 </span>
<span>p = 6.5 </span>
<span>g = 2.5 </span>

<span>popcorn = $6.50 </span>
<span>granola = $2.50
 A is the answer </span>
6 0
3 years ago
Read 2 more answers
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