3 years ago

What is the probability that 19 tosses of a fair coin will show 8 heads?

1 answer:

8 0

This can be solved by using the binomial distribution:
$P(8\ heads)=19C8\times(\frac{1}{2})^{8}\times(\frac{1}{2})^{11}=0.144$

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tester [92]

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andrezito [222]

Answer: $y=\dfrac12 x$ .

Step-by-step explanation:

We know that $a f (x)$ compresses f(x) vertically such that

if 0 < a < 1 (a fraction), the graph is compressed vertically by a factor of a units.
if a > 1, the graph is stretched vertically by a factor of a units.

If we vertically compress the linear parent function, F(x) = x, by multiplying by $\dfrac12$ .

Then, the equation of the new function is $y=\dfrac12 F(x)=\dfrac12 x$ .

i.e. $y=\dfrac12 x$ .

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Colt1911 [192]

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tresset_1 [31]

Answer:

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2 years ago