one dime is tossed 200 times. how many times would you expect to toss heads? ? times
one dime is tossed 200 times. how many times would you expect to toss heads? ? times
Answer
Explanation:
Step1: Determine probability of heads
The probability of getting heads in a single - coin toss is $p=\frac{1}{2}$, since there are 2 possible outcomes (heads or tails) and 1 favorable outcome (heads).
Step2: Calculate expected number of heads
The expected value $E(X)$ of a binomial experiment is given by $E(X)=n\times p$, where $n$ is the number of trials and $p$ is the probability of success in a single trial. Here, $n = 200$ and $p=\frac{1}{2}$. So, $E(X)=200\times\frac{1}{2}=100$.
Answer:
100