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1 of 8 0-day streak

Binomial conditions, the distribution table and graph shape

Question 1 of 8

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Consider the following repeated-trial situation

A fixed number of independent trials gives success or failure, but the success probability changes between trials

Decide whether this situation can be modelled by a binomial distribution

For the distribution table below, use a separate binomial variable with \(n=6\) and \(p=2/7\)

Binomial probability distribution
\(x\)\(\Pr(X=x)\)
\(0\)\(\frac{15625}{117649}\)
\(1\)\(\frac{37500}{117649}\)
\(2\)\(\square\)
\(3\)\(\square\)
\(4\)\(\frac{6000}{117649}\)
\(5\)\(\square\)
\(6\)\(\frac{64}{117649}\)
(a)1 mark

Does the described situation meet the conditions for a binomial distribution?

(b)3 marks

Calculate the missing entries in the probability distribution table

(c)1 mark

Find \(\Pr(X=6)\) from the table

Format: exact fraction