The middle term in a set of data. If the data set has an even number of terms this is the average of the two middle terms.

Step-by-step explanation:

let the terms be 2n

middle terms are 2n/2,2n/2  +1

or n,n+1

so middle term is =(n+n+1)/2 or average of two middle terms.

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

answer: the proof is mentioned below.

step-by-step explanation:

since, given:   lines bc = ef

prove:   lines ac > ef

          statements                                           reason

1. bc=ef                                           1. given

2. ac= ab+bc                                 2. because b is the point between the  

                                                            line segment ac

3.   ac > bc                                       3. because if a line segment is equal to

                                                          the sum of two line segments then it is

                                                          always greater then each of these

                                                          individual line segments

4. ac > ef                                         4. by equality property.