A park district is building an outdoor tennis court based on a scale drawing that measures 30 cm long by 13.75 cm and was the scale 1 cm: 0,8 m, What Is the area of the actual tennis court in square meters?
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Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample