The head of the math department compared the scores of students in two classes on the Chapter 2 test. He found that the mean score of both classes was the same. He also found that there was greater variability in the scores of Ms. Biren’s students than in the scores of Mr. Hayes’s students. Which quality of the data sets would lead the department head to that conclusion?
The median score in Ms. Biren’s class is greater than the median score in Mr. Hayes’s class.
The median score in Ms. Biren’s class is less than the median score in Mr. Hayes’s class.
The range of scores in Ms. Biren’s class is greater than the range of scores in Mr. Hayes’s class.
The range of scores in Ms. Biren’s class is less than the range of scores in Mr. Hayes’s class.

The range of scores in Ms. Biren’s class is greater than the range of scores in Mr. Hayes’s class.

This would mean there was likely more variety (variability) in Ms. Biren's class than Mr. Hayes's, which is what we know.

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

hi how are you doing today? if you ever need just tell me

step-by-step explanation: