The binomial cumulative probability with p=0.5 for 3+ successes is as follows:

for p=0.5 (50% success rate) it becomes:

the probability is 0.65625, or about 66%
Here, as I can see, you are adding fractions, and making sure you have a common denominator.
12) is correct
13) is correct
You got a common denominator, and added them up! Great job! <span />
Answer:
picture?
Step-by-step explanation:
Answer:
6/35 is the answer
Step-by-step explanation:
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answer: black screen is showing for me no question