Solutions Statistics

Solution) A particular ATM machine dispenses $20 bills as requested by customers in amounts up to a maximum of

Question: A particular ATM machine dispenses $20 bills as requested by customers in amounts up to a maximum of $400. The following table shows the frequency of transactions in which customers withdrew specific amounts during a particular month. (Note that this particular machine has a $60 “quick cash” option.)

Amount Withdrawn	Number of Customers
$20	32
$40	44
$60	93
$80	43
$100	56
$120	31
$140	33
$160	25
$180	16
$200	45
$220	23
$240	18
$260	21
$280	11
$300	27
$320	14
$340	13
$360	10
$380	7
$400	18