Binomial Distribution: Videos & Practice Problems

(i) $\mu =2.05$; ${\sigma }^2\approx 0.90$; $\sigma \approx 0.95$

(ii) This means that out of $8$ commuters, on average, about $2$ are expected to ride a bicycle to work

(iii) Values greater than $4$ are considered unusual because they fall more than $2$ standard deviations above the mean

(i) $\mu =1.04$; ${\sigma }^2\approx 0.90$; $\sigma \approx 0.95$

(ii) This means that out of $8$ commuters, on average, about $1$ is expected to ride a bicycle to work

(iii) Values greater than $3$ are considered unusual because they have a probability less than $0.05$

(i) $\mu =1.04$; ${\sigma }^2\approx 0.80$; $\sigma \approx 0.85$

(ii) This means that out of $8$ commuters, on average, about $1$ is expected to ride a bicycle to work

(iii) Values greater than $4$ are considered unusual because they fall more than $3$ standard deviations above the mean

(i) $\mu =2.05$; ${\sigma }^2\approx 0.80$; $\sigma \approx 0.95$

(ii) This means that out of $8$ commuters, on average, about $2$ are expected to ride a bicycle to work

(iii) Values greater than $3$ are considered unusual because they fall more than $3$ standard deviations above the mean