We know that
set of data [161,170,160]
step 1
Find the mean
[161+170+160]/3=163.67 cm
step 2
for each number: subtract the Mean and square the result
(161-163.67)²----->7.1289
(170-163.67)²----> 40.0689
(160-163.67)²----> 13.4689
step 3
work out the mean of those squared
differences
[7.1289+40.0689+13.4689]/(3-1)=30.33
step 4
Take the square root of that
<span>S=√30.33------> 5.51 cm</span>
<span>SE=S/</span>√n--------> 5.51/√3------> 3.18-------> 3.2 cm
the answer is
3.2 cm
see the attached formulas
(a) is neither .it has one soultion
(b) is an identity .it had infinite soultions
(c) contradiction .it has no soultions
Answer: 5.60
Step-by-step explanation:
20% of 64 = 12.8 / 12.80 so you would then add 64 to 12.8 and that gets you 76.8
76.8 ÷ 3 = 25.6 so paying with a twenty dollar bill would mean you still owed 5.60.
Answer:
I think its 980000000
Step-by-step explanation:
just calculate it and get the answer. Im not for sure though
I would say C or D but D looks better