Answer: b=27
Step-by-step explanation: Add 119+34 and you get 153. Subtract 153 from 180 and you get 27. Hope this helps.
Answer:
Step-by-step explanation:
There are four 8s, so s should represent one 8.
The 12 is made up of 4 * 3, so B should be the answer.
Answer: B or 4(s + 3)
When the brackets are removed, you get 4s + 12
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Answer:( c ) 1.414
Step-by-step explanation:
Let m be mean
M=mean=sum/n
M= (16+19+18+17+20+18) / 6
M=108/6
M=18
Let start finding:
The standard deviation formula is= sqrt( Summation of |x-m|^2 / n-1)
|x-m|^2
For 1st: |16-18|^2=4
For 2nd: |19-18|^2=1
For 3rd: |18-18|^2=0
For 4th: |17-18|^2=1
For 5th: |20-18|^2=4
For 6th: |18-18|^2=0
Summation of |x-m|^2 =10
The standard deviation formula is :
S.D = sqrt( Summation of |x-m|^2 / n-1)
S.D= sqrt(10 / 5)
S.D=sqrt(2)
S.D= 1.414
