Can you help me solve the 3rd problem?

An insurance company crashed four cars in succession at 5 miles per hour. The cost of repair for each of the four crashes was $420, $469, $409, $226 ( . Compute the range, sample variance, and sample standard deviation cost of repair. The range is $ 243 s' = 11358 dollars (Round to the nearest whole number as needed.) s = $ (Round to two decimal places as needed.)