We want to find out the relationship between a teenager’s age and shoe size from

ID: 3298147 • Letter: W

Question

We want to find out the relationship between a teenager’s age and shoe size from the scatter plot below

Which of the following statement is NOT correct?

When age increases, shoe size generally increases.

The relationship doesn't apply to any specific teenager.

Because this relationship is very intuitive, thus, it is very reliable.

To increase reliability, we need to increase the size of the sample.

When age increases, shoe size generally increases.

The relationship doesn't apply to any specific teenager.

Because this relationship is very intuitive, thus, it is very reliable.

To increase reliability, we need to increase the size of the sample.

Shoe Sizes of Teens 12 10 10 1 12 1 14 15 16 17 18 19 20 Age in Years

Correct option:

c. Because this relationship is very intutive, thus, it is very reliable.

EXPLANATIO: In statistics, the eliability is not based on intution. Thus, option c is not valid.

Other options:

a. is valid, because we see from the scatter plot.

b. is valid, because statistical statements are not applicable for specific individuals.

Option c is valid, becuse reliability increases with sample size.

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.