A recent Algebra 2 quiz had scores that closely followed a normal distribution with a
mean of 80 and the standard deviation of 10. (Note: there was extra credit on this quiz)
O SD
JS
SO
SD
es
les
250
2 SD
-350
3 SD
orations
А B С D E F G
Using the given mean and standard deviation, label the normal curve shown above.
le Drive
pod
A=
BE
D
very Education
E=
F=

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.