1 The table below shows the cost of different numbers of goldfish at a pet store. COST OF GOLDFISH Number of Goldfish Cost $1.50 10 $3.00 15 $4.50 20 $6.00 The cost is a linear function of the number of goldfish. Which statement describes the rate of change of this function? A The cost increases $0.30 each time 1 goldfish is added. B The cost increases $1.50 each time 1 goldfish is added. The cost increases $3.00 each time 5 goldfish are added. D The cost increases $6.00 each time 5 goldfish are added.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.