An experiment consists of rolling two fair number cubes (dice). Find the probability of tossing a sum of 6 on the number cubes.
1 answer:
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Explanation:
The line through the data points has a negative slope, showing that y is <em>negatively correlated</em> with x. The "inversely proportional" relationship means the product of x and y is a constant. It produces a curved graph like the one attached.
Answer:
1 or -0.5±1.9365i
Step-by-step explanation:
We know that
So plug in x=a and y=1/a, (a-1/a)^3+3*a*1/a*(a-1/a)=4
Let a-1/a=k, k^3+3k=4, k=1 or a complex conjugate -0.5±1.9365i
That's the answer.