Answer:
8 1/3+9 4/5+ 11 5/6+12+14 7/8=<u>58 61/120</u>
Step-by-step explanation:
First, you would add all of the whole numbers: 8+9+11+1+2+14=54
Second, you would add all of the fractions 1/3+4/5+5/6+7/8=4 61/120
Lastly, 54+4 61/120=<u>58 61/120</u>
Answer: range= 26, variance= 80 and standard deviation= 8.94
Step-by-step explanation:
Range = highest - lowest
Range = 146 - 120
Range= 26
Let m be mean
M=mean=sum/n
Mean=(120+134+146+127+138+133) / 6
M=798/6
M=133
The standard deviation sample formula:
S.D = sqrt( Summation of |x-m|^2 / n-1)
Let start finding:
|x-m|^2
For 1st: |120-133|^2=169
For 2nd: |134-133|^2=1
For 3rd: |146-133|^2=169
For 4th: |127-133|^2=36
For 5th: |138-133|^2=25
For 6th: |133-133|^2=0
Summation of |x-m|^2 = 400
The standard deviation formula is :
S.D = sqrt( Summation of |x-m|^2 / n-1)
S.D= sqrt(400 / 5)
S.D=sqrt(80)
S.D= 8.94
Variance = (Summation of |x-m|^2 / n-1)
Variance= 400/5
Variance= 80
It is $57.38 you just multiply it by 1.00 and you get $57.38.
Answer:
20.1 units
Step-by-step explanation:
2πr * X/360, where X = angle measure
2(3.14)(4)(288/360)
20.1 units
Answer:
The equation i came up with is $55= 7.8x - 47.20
