Question

Assume that there are 2 trials.

Answer 1

Answer:

P(success) = 0.2

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Answer 2

Answer:

P(success)=0.2 matches the probability histogram.

Step-by-step explanation:

Formula : $P(X)=^nC_r p^r(1-p)^{n-r}$

Where X represents the number of successes.

p represents probability of success .

1-p represents probability of failure.

Now when X= 0 the  probability is 0.64 (Using histogram )

So, $^2C_0 p^0(1-p)^{2}=0.64$

$(1-p)^{2}=0.64$

$(1-p)=\sqrt{0.64}$

$(1-p)=0.8$

$1-0.8=p$

$0.2=p$

So, the probability of success = 0.2

Hence P(success)=0.2 matches the probability histogram.