Question

The race speeds for the top eight cars in a 200-mile race are listed below. Use the range rule of thumb to find the standard deviation.189.1 185.9 189.2 182.4 175.6 184.2 188.3 177.2a. 7.5b. 6.8c. 3.4d. 1.1

Answer 1

Answer:3.4d

Step-by-step explanation: From Range Rule of thump:

Standard Deviation = (Range)/4

=[(Highest value - lower value)]/4

=(189.2 - 175.6)/4

=13.6/4

=3.4