The original expression evaluates to 54.4 as shown in the first working.
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For some reason, 3.4 got transcribed to be 1.7 in the 3rd line of the second working. There is no math operation in the expression that requires 3.4 to be divided by 2.
The trials are independent; there are only 2 outcomes per trial; and the probability of success is the same for each trial.
5 questions.
hope that helps.
Answer:
0.333333333
Step-by-step explanation: