Question

consider the following frequency table representing the scores on a test.
scores on a test
class frequency
40-51 12
52-63 6
64-75 3
76-87 5
88-99 8
step 3 of 3: determine the number of scores between 40 and 87.
answer

Explanation:

Step1: Identify relevant classes

Classes: 40-51, 52-63, 64-75, 76-87

Step2: Sum their frequencies

$12 + 6 + 3 + 5$

Step3: Calculate total

$12+6=18$, $18+3=21$, $21+5=26$

Answer:

26