Answer:
Mean= 10.83
Median= 9.5
Step-by-step explanation:
Given number,
10, 15, 8, 11, 9, 12
N= 6
As we know,
Mean= Ex/N
=10+15+8+11+9+12/6
=65/6
=10.83
Therefore, Mean= 10.83
Now,
Median(MD)= (N+1/2)th item
= 6+1/2
=7/2
=3.5th item
So, Median(MD)= 3th+4th/2 item
= 8+11/2
= 19/2
= 9.5
Therefore, Median= 9.5
Answer:
Step-by-step explanation:
(5x+1)²>(2x+2)²+(4x)²
25x²+10x+1>4x²+8x+4+16x²
5x²+2x-3>0
5x²+5x-3x-3>0
5x(x+1)-3(x+1)>0
(x+1)(5x-3)>0
x+1=0,gives x=-1
5x-3=0,gives x=3/5
x >0(because 4x should be >0)
side is always positive.
so x>3/5
again 5x+1<2x+2+4x
5x-6x<2-1
-x<1
x>-1
x=all real values >3/5
A small outlier could affect the whole data set because it could reduce the mean, or make the average of the whole data set smaller.
An example would be the data set could be 1, 8, 9, 10
To find the mean you would add everything together then divide it by the number of numbers you just added together. The mean of this set would be 28/4 which equals 7. Now, if the outlier were -8 instead of 1, then the mean would be much different.
~Hope this helped!~
Answer:
-5/8
Step-by-step explanation:
So basically with fractions that have different denominators you have to find the GCF (greatest common factor) of both of them, in this case 8 would be a GCF because it you times 4 and 2 you get a whole number of 8. since we found out the GCF we want to set them equal. so take the 1/4 and multiply both the top and bottom by 2, so we end with 2/8. You set the equation back up (-7/8) + (2/8). and combine the numerators -7+2/8 which ends you with with the answer of (-5/8) :)
Answer:
4060
Step-by-step explanation:
