Answer:
A simple random sample without replacement (SRSWOR) of the people of the country aged 18 to 25 years.
Step-by-step explanation:
Matt wants to investigate the opinions of young adults in the country, aged 18 years to 25 years about time spent playing video games. He plans to administer a survey to a sample of people. The following may be a suitable sample :-
A simple random sample without replacement (SRSWOR) of the people of the country aged 18 to 25 years.
<u>Answer:</u>
-10,1,19
<u>Step-by-step explanation:</u>
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x+y+z = 10 (Equation 1)
2y-x= 12 (Equation 2)
x-y+2z = 7 (Equation 3)
(Equation 2): -x = -2y+12
x = 2y-12 (Equation 4)
(Equation 1) - (Equation 3): 2y-z = 3
-z = -2y+3
z = 2y-3 (Equation 5)
Substitute (4) and (5) into (1)
x+y+z = 10
(2y-12)+y+(2y-3) = 10
5y-15 = 10
5y = 5
y=1
Substitute y=1 into (2)
2y-x= 12
2(1)-x= 12
2-x= 12
-x= 12-2
-x= 10
x= -10
Substitute y=1 and x=-10 into (1)
x+y+z = 10
-10+1+z = 10
z-9 = 10
z = 10+9
z = 19
Order: x = -10, y = 1, and z = 19
Answer:
3.2
Step-by-step explanation:
Answer: yes it is
Step-by-step explanation:
Step-by-step explanation:
A is 16.9%
B is 352,181
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