Answer:
[tex]Range=28.75-22.25\Rightarrow Range=6.5\:students[/tex]
Step-by-step explanation:
1) Retrieving information:
"The number of students 2nd period Math: 32 27 26 23 25 22 30 19"
2) Ordering these numbers:
19 22 23 25 26 27 30 32
3) Calculate the mean of the largest numbers:
[tex]\bar{x}=\frac{32+30+27+26}{4}=28.75[/tex]
Do the same with the smallest ones:
[tex]\bar{x}=\frac{25+23+22+19}{4}=22.25[/tex]
4) Subtract them:
[tex]Range=28.75-22.25\Rightarrow Range=6.5\:students[/tex]
