URGENT! PLEASE HELP!

The data modeled by the box plots represent the battery life of two different brands of batteries that were tested.

(a) What is the median value of each data set?

(b) What is the range for each data set?

(c) What is the interquartile range for each data
set?

(d) Which battery would you recommend to a
friend? Explain your choice.

a.

brand x-13

brand y-16

b.

brand x-5

brand y-8

c.

brand x-2.5

brand y-2

d.

brand y because it has a longer battery life

Step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

answer: x=60