3) A fair coin is flipped 3 times. a) What is the probability that the coin flips heads 3 times in a row or tails 3 times in a row? b) What is the probability of flipping heads at least twice?

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A: Given Total number of possible outcomes 5x5=25  

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Q: Find P (-2.15 <Z<1.63)

A: Given:  z be the standard normal variate then to find probability p(-2.15&lt;z&lt;1.63)??

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Q: A binomial experiment with probability of success p = 0.78 and n=7 trials is conducted. What is the ...

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Q: 11. What is the sum of all 4 digit numbers formed using the digits 2, 3,4 and 5 without repetition?

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A: From the given information we find the solution.

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A: Given,mean(μ)=13standard deviation(σ)=6