At 95% confidence interval, true population mean is given by
x+/- 2sd
where x= sample mean and sd = sample standard deviation
True mean of population = 13.50 +/- 2*1.51 = 13.50+/-3.02
Interval: 13.50+3.02, 13.50-3.02 = 16.51, 10.48
Answer:
comparing both the equation,
3X-3=6x-1
or, -2 =3X
or, X= -2/3
Y=6X-1
or, Y= 6× -2/3 -1
or, Y= -4-1
or, Y= -5
hence the required solution is (-2/3, -5)
Number of games won/Number of total games played x 100%
52/66 x 100% = 78.79%
Hope u understood! :)
Step-by-step explanation:
Step 1: Subtract -8 from both sides.
x2+4x−40−(−8)=−8−(−8)
x2+4x−32=0
For this equation: a=1, b=4, c=-32
1x2+4x+−32=0
Step 2: Use quadratic formula with a=1, b=4, c=-32.
x=−b±√b2−4ac2a
x=−(4)±√(4)2−4(1)(−32)2(1)
x=−4±√1442
x=4 or x=−8
Answer:
x=4 or x=−8 = The first one
Hello! Hope I can help! :)
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