A sample of 17 participants took part in a hearing experiment. Among other things, the absolute hearing threshold (in decibels) was measured for each participant. The 17 measurements were as follows:

Hello your question is incomplete attached below is the complete question

answer : attached below

Step-by-step explanation:

Given data :

using initial class boundary = 17.5

class width = 4

attached below is the solution  table and histogram

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap