Answer: 99% confidence interval would be (45.74,54.26).
Step-by-step explanation:
Since we have given that
N = 18
Mean = $50
Standard deviation = $7
At 99% confidence level, z = 2.58
So, Interval would be

Hence, 99% confidence interval would be (45.74,54.26).
9x= x+4
Subtract x on both sides to balance the equation.
8x= 4
Divide 8 into both sides. (the inverse of multiplication)
x= 1/2
We can check this by plugging in x.
9(.5)= .5+4
4.5= 4.5
I hope this helps!
~kaikers
<span>probability of every number is 1/6</span>
Step-by-step explanation:
5.14×10^6 + 7.2×10^5
51.4×10^5 + 7.2×10^5
58.6 ×10⁵
=5.86× 10⁶