HELP! PROBABILITY!
2 answers:
Answer:
Estimated probability
Step-by-step explanation:
In this question Emil estimates the probability of 2 or more heads coming up in 3 coin flips.
He has a computer which randomly selects 0 or 1 three times, with 0 representing heads and 1 as tails.
From the results shown we will select the preferred events of getting 2 or more heads, means results having 2 zeros or more than 2 zeros.
Number of preferred events are = 5
And total events are = 12
Therefore estimated probability =
Probability
Therefore answer is
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Answer:
Option C = 15
Step-by-step explanation:
In principle when a function <em>f(x) </em>varies directly with <em>x</em> it suggests that any changes in x results in the equivalent changes in<em> f(x)</em>. If we have two variables, i.e. <em>y</em> representing<em> f(x)</em> and <em>x</em> representing itself, any increment/decrement in <em>x</em> will result to the same increment/decrement in <em>y</em> by a factor <em>a, thus we can say that y = ax, implying y and x have the same ratio. </em>
In the given question we know that <em></em> when
<em>, </em>which translates as
This tells us that varies by a factor (lets call it)
for a given value of
.
To find this factor we can just divide 45 with 9 which gives:
Thus the factor here is
which finally tells us that
Eqn (1) our original function.
Since we now know our function we can plug in the value for and solve for
as follow:
Looking at the given options in the question we can conclude that the correct answer is Option C = 15