Population have a smart phone
It has been stated that 75% of the population have a smart phone. If you randomly choose 10 people, what is the probability that at least 9 people will say they have a smart phone? Please show your work for partial credit.
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The magnetic flux through 20 turn coil with a 100 O resistance changes at a constant rate from -5.8 Tm2 to 3.8 Tm2 in 0.48 s. What is the induced current in the coil?
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