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Aantal halssnoero verkoopl Number of nocidacus sold
1.1 Linda's monthly expenditure is made up of a fixed monthly rental for her stall and the
cost of the material for the necklaces. How much rental does she pay every month?(2)

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?