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

Question

Mathematics

Makena Hood

1 May, 10:43

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

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Britney Morrison · 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