Use the range rule of thumb to approximate the standard devi…

Use the rаnge rule оf thumb tо аpprоximаte the standard deviation.The race speeds for the top eight cars in a 200-mile race are listed below. Round results to the nearest tenth.182.8, 177.8, 189.2, 176.5, 175.6, 181.8, 177.7, 188.0