Which of these would best describe the effect that inventions like the telegraph steamboat and railroads had one life in early america?

a) thomas edison was responsible for each of these new inventions

b) these inventions lead to increased business productivity and economic growth.

c) inventions like these call slavery to spread throughout the united states.

d) these inventions made it possible for new states like kansas and missouri to join the union.

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !

i need more info !