Dash collects data on the hair lengths of a random sample of seventh-grade boys in his school.


The data are clustered between and inches and between and inches. Dash can infer from the data that seventh-grade boys in his school have both short and long hair.





Respuesta :

Answer:

[tex]First\ interval: \frac{1}{2} \to 2 \ inches[/tex]

[tex]Second \ interval: 3\frac{1}{2} \to 4\frac{1}{2} \ inches[/tex]

Step-by-step explanation:

Given

See attachment for complete question

Required

Complete the blanks

To do this, we simply consider the intervals of the hair lengths where they are lots of data; i.e. where frequency is greater than 1

For the first cluster, we can select the following interval

[tex]\frac{1}{2} \to 2[/tex]

Because;

hair length [tex]\frac{1}{2}[/tex] has a frequency of 3

and the data continues till hair length 2 which has a frequency of 2

For the second cluster, we can select the following interval

[tex]3\frac{1}{2} \to 4\frac{1}{2}[/tex]

Because;

hair length [tex]3\frac{1}{2}[/tex] has a frequency of 3

and the data continues till hair length [tex]4\frac{1}{2}[/tex] which has a frequency of 2

Note that, hair lengths with 0 or 1 as their frequency were not selected as part of the cluster

Ver imagen MrRoyal