Binomial Distribution: Videos & Practice Problems

(a) $\mu =6.80$

(b) ${\sigma }^2=2.18$

(c) $\sigma =1.48$

(d) On average, $6.80$ out of $10$ adults are expected to recycle, with a typical variation of about $1.48$

(e) Values $0$, $1$, $2$, $3$, $10$ would be considered unusual

(a) $\mu =6.80$

(b) ${\sigma }^2=2.40$

(c) $\sigma =1.60$

(e) It is highly unusual to find more than $6$ adults recycling

(f) Values less than $5$ or greater than $8$ would be considered unusual

(a) $\mu =7.0$

(b) ${\sigma }^2=1.8$

(c) $\sigma =1.3$

(d) Every adult in the group is expected to recycle with certainty

(e) Only $10$ is unusual

(a) $\mu =7.0$

(b) ${\sigma }^2=2.2$

(c) $\sigma =1.5$

(d) The variation in responses is too large to draw conclusions

(e) All values between $5$ and $10$ are unusual