Vítor is going to guess on all 40 questions of his multiple choice test. Each question on the test has 5 answer choices
1 answer:
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Answer:
P(B)=0.7
Step-by-step explanation:
When the events do not affect each other, they are known as independent events. In other words, two events are independent if the outcome of the second event is not affected by the outcome of the first event.
If A and B are independent events, the probability that both events will occur is the product of the probabilities that the individual events will occur:
P(A and B)= P(A)*P(B)
In this case, P(A and B)= 0.21 and P(A)= 0.30
Replacing:
0.21=0.30*P(B)
Solving:
<u><em>0.7=P(B)</em></u>
Answer:
Based on the results it is expected that the slope of the tangent line at the point (0.5,10) is -20.
Step-by-step explanation:
To see that compute, the slopes for the given points as follows:
1. For we have:
2. For we have:
3. For we have:
4. For we have:
So, we observe that the slope of the tangent line at is close to the value -20.
The graph shown below is useful to see the secant lines that approximates the tangent line.
