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trasher [3.6K]
3 years ago
7

An unfair coin with .4 probability of tails is flipped 7 times what is the probability of obtaining exactly 5 heads

Mathematics
1 answer:
steposvetlana [31]3 years ago
5 0
P(heads) = 1 - 0.4 = 0.6P(5\ heads)=7C5\times0.6^{5}\times0.4^{2}=0.2613
The answer is 0.26 to 2 d.p.
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How do you solve equations that contain like terms
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5 0
3 years ago
Quotient and remainder of 32 and 6
kirill115 [55]
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F is between E and G. EF=3X, EG= 11x-2, FG= 5x+16. Find the value of the variable
Salsk061 [2.6K]

9514 1404 393

Answer:

  x = 6

Step-by-step explanation:

The sum of segments is used:

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  8x +18 = 11x . . . . . . . . add 2

  18 = 3x . . . . . . . . subtract 8x

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The value of the variable is 6.

__

<em>Check</em>

The segment lengths are ...

  EF = 3x = 3·6 = 18

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  EG = 11x -2 = 11·6 -2 = 64 = 18+46 . . . answer is correct

3 0
3 years ago
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