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Question 2 [ 1 0 ] Statistical analysis of past data for automatic teller machine ( ATM ) withdrawals at a certain bank shows that

Question 2[10]
Statistical analysis of past data for automatic teller machine (ATM) withdrawals at a certain bank shows that the amounts withdrawn per day range between R800 and R2000 per customer with the following frequencies:
Amount per withdrawal R800 R900 R1000 R1500 R2000
Frequency (number of customers per day)
9
20
18
10
3
2.1 Convert the frequency table to a cumulative probability distribution. (3)
2.2 Suppose the initial amount of cash available at the ATM on a certain day is R60000. Can the bank expect a shortfall of cash at the ATM on that day? (3)
2.3 Simulate cash withdrawal at the ATM for the rst 10 customers of the day and nd the remaining amount of cash at the ATM given that the initial amount for the day is R30000. Use the following U[0,1)-random numbers:
U1=0.53; U2=0.73; U3=0.76; U4=0.82; U5=0.61; U6=0.20; U7=0.75; U8=0.75; U9=0.12; U10=0.14

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