What a. 6.14 * 10^-9 in standard form b. 6.104 * 10^-10 in standard form these are my options: 0.6104 0.614 0.6104 0.614 0.6014

Well 6.14* 10^-9 is 0.00000000614
And 6.104* 10^-10 is 0.0000000006104.

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.