What is the range of the relation?
1 answer:
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Answer:
Step-by-step explanation:
3 raised to 2 is 3 to the power of 2.
3 is multiplied by itself.
Answer:
37.21% probability that the person is a statistician.
Step-by-step explanation:
We have these following probabilities:
An 80% probability that a statistican is shy.
A 15% probability that an economist is shy.
At the gathering, a 90% probability that a person is an economist.
At the gathering, a 10% probability that a person is a statistican.
If you meet a shy person at random at the gathering. What is the probability that the person is a statistician?
This can be formulated as the following question:
What is the probability of B happening, knowing that A has happened.
It can be calculated by the following formula
Where P(B) is the probability of B happening, P(A/B) is the probability of A happening knowing that B happened and P(A) is the probability of A happening.
So
What is the probability that the person is a statistican, given that he is shy?
P(B) is the probability of the person being a statistican. So P(B) = 0.1.
P(A/B) is the probability of a statistican being shy, so P(A/B) = 0.8.
P(A) is the probability of a person being a shy. This is 15% of 90%(economists) and 80% of 10%(statisticans). So
Finally
37.21% probability that the person is a statistician.
Answer:
( About ) 1,099 pounds
Step-by-step explanation:
The force required to keep this truck from rolling down the hill is opposed by the force of friction, comparative to the 2600 pounds of force against this friction. It should be that this opposing force is at work more towards the bottom of this hill, and thus the question asks the magnitude of latter force to keep this truck idle -
|| F || = sin( 25 ) * ( Fg ) = sin( 25 ) * ( 2600 lb ) = ( About ) 1098.80748 pounds
<u><em>This can be rounded to a solution of 1099 pounds</em></u>
