The answer should be number 4
Answer:
3 1/2
Step-by-step explanation:
Quarter bag plus three quarter bag=1 bag
2 half bags is one bag
2 three quarters full is 1 1/2 bag :)
Answer:
19
Step-by-step explanation:
I just googled it lol
Answer:
E(X) = 0.64
Sd(X) = 0.933
Step-by-step explanation:
3(0.07) + 2(0.11) + 1(0.21)
E(X²) = 3²(0.07) + 2²(0.11) + 1²(0.21)
= 1.28
Var(X) = 1.28 - 0.64² = 0.8704
Sd = 0.933
