Final answer:
To find the highest and lowest value in the group, use the equation Range = Highest value - Lowest value, and solve for the values using the given information.
Step-by-step explanation:
To find the highest and lowest value in the group, we can use the equation:
Range = Highest value - Lowest value
We are given that the sum of the highest and lowest value is 580 and the coefficient of range is 0.4. Since the coefficient of range is the ratio of the range to the sum of the highest and lowest value, we can write the equation:
0.4 = (Highest value - Lowest value) / 580
From this equation, we can solve for the highest and lowest value.