Question

find the class midpoint of the fico score interval 550 - 599.

fico score	frequency
450 - 499	5
500 - 549	8
550 - 599	19
600 - 649	27
650 - 699	10
700 - 749	1

(1 point)
○ 550
○ 575
○ 570
○ 574.5

Explanation:

Step1: Recall mid - point formula

The formula for the mid - point of an interval $[a,b]$ is $\frac{a + b}{2}$.

Step2: Identify $a$ and $b$

For the interval $550 - 599$, $a = 550$ and $b=599$.

Step3: Calculate mid - point

Substitute $a = 550$ and $b = 599$ into the formula: $\frac{550+599}{2}=\frac{1149}{2}=574.5$.

Answer:

$574.5$