The range is a statistical property that consists in the difference between the smaller number and the bigger number of a sequence.
30 - 22 = 8
Hope it helped!
A. How many different selections are possible?
B. What is the probability of winning?
C. If you win, what is your net profit?
D. Find the expected value
Answer :
A. sequence of three digits (from 0 to 9). so 10 numbers.
We know 3 lottery games. So possible selections = 10^3 = 1000
B. Probability of winning = one outcome / total outcomes
P( winning) =
= 0.001
c. Net profit = winning amount - paid amount
= 384.13 - 1.33 = $382.8
D. expected value
E(x) = net profit * winning probability - paid amount * lost probability
E(x) = 382.8 * 0.001 - 1.33 * 0.999 = -0.95
you expect to lose 95 cents per ticket.
Answer: $7.70
Step-by-step explanation:
Given : A box contains eighteen $1 bills, ten $5 bills, eight $10 bills, three $20 bills, and one $100 bill.
Total bills = 
We know that probability of any event =
i.e. the probability of getting $1 bills =
Probability of getting $10 bills =
Probability of getting $5 bills =
Probability of getting $20 bills =
Probability of getting $100 bills =

Hence, the expected value of your draw= $7.70