select the correct answer from the drop - down menu. a coin is biased to display heads 75% of the time. it…
select the correct answer from the drop - down menu. a coin is biased to display heads 75% of the time. it is tossed 20 times, and the outcomes are recorded. the most improbable simulation for this coin is heads.
Answer
Explanation:
Step1: Calculate expected number of heads
The probability of getting heads $p = 0.75$ and the number of trials $n=20$. The expected number of heads is $E(X)=np$. So, $E(X)=20\times0.75 = 15$.
Step2: Determine improbability
The values closer to the expected value are more probable. Among 9, 13, 14 and 15, 9 is the furthest from the expected value of 15.
Answer:
9