Let x be a binomial random variable with n=35 and p=.20.If we use the normal distribution to approximate probabilities for this, we would use a mean of _______.
A)35
B)20
C)70
D)7
E)3.5

Question

Quizplus · Accepted Answer

The mean ($\mu$) of a binomial distribution is calculated as $\mu = np$, where $n$ is the number of trials and $p$ is the probability of success on each trial. For $n=35$ and $p=0.20$, the mean is $35 \times 0.20 = 7$.

Let X Be a Binomial Random Variable with N=35 and P=.20.If