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3 years ago

6

Find the probability of getting one tail and three heads when you flip a fair coin four times.

1 answer:

gayaneshka [121]3 years ago

5 0

Well, when you flip a coin, there's a 50/50 chance it's going to land on heads or tails. so if you flip a coin 4 times there's a small chance it's going to be on heads and three tails.
some probabilities are-
-all four heads
-all four tails
-two heads two tails
-3 heads one tail
-1 tail 3 heads
so, therefore there is a 1/5 chance that it is going to be one heads and three tails. I hope this helps

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4 years ago

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kondor19780726 [428]

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f(x)-values

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Step-by-step explanation:

The table shows the exponential growth function

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$13=a\cdot b^1+c\\ \\19=a\cdot b^2 +c\\ \\37=a\cdot b^3+c$

Subtract these equations:

$ab^2+c-ab-c=19-13\Rightarrow ab(b-1)=6\\ \\ab^3+c-ab^2-c=37-19\Rightarrow ab^2(b-1)=18$

Divide them:

$\dfrac{ab^2(b-1)}{ab(b-1)}=\dfrac{18}{6}\Rightarrow b=3$

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If this function would be translated 4 units down, its expression will be

$y=3^x+10-4\\ \\y=3^x+6$

This means that f(x)-values decreased by 4.

Then the table for translated function is

$\begin{array}{cccccc}x&1&2&3&4&5\\ \\f(x)&9&15&33&87&249\end{array}$

The graph of translated function passes through the point (4,87)

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3 years ago