2 years ago

HELP ME PLZZZZZZZZZZZZZZZ

Mathematics

1 answer:

zhenek [66]2 years ago

4 0

Step-by-step explanation:

g(f(x)) = f(x) substituted in g(x)'s function.

g(3x^2 - x - 8) = 3x^2 - x - 8 + 5 = 3x^2 - x - 3.

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Based on a poll, 40% of adults believe in reincarnation. Assume that 8 adults are randomly selected, and find the indicated prob

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Answer:

The probability under the given conditions is found:

P(7) = 0.079

Step-by-step explanation:

Let x be the number of adults who believe in reincarnation.

Adults randomly selected = 8

percentage of adult believe in reincarnation = 40% = 0.4

x follows binomial distribution:

P(x) = $\left(\begin{array}{ccc}n\\x\end{array}\right) (p)^x(1-p)^{n-x}$

where

n= total people random people selected = 8,

x = selected for the part = 7,

p = probability given = 0.4

P(7) = $\left(\begin{array}{ccc}8\\7\end{array}\right) (0.4)^7(1-0.4)^{8-7}$

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Rounding off to 3 decimal positions

P(7) = 0.079

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Answer:

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