What is the common denominator of 2
7
+
x- 2 2 - 4
in the complex fraction 5 2
x² - 4 x+2
0 (x+2)(x - 2)
o x-2
o (x + 2)2(x - 2)
ox+2

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Can someone check if i did this correct. it’s number 4 if you’re wondering.

These box plots show the number of electoral votes one by democratic and republican presidential candidates for the elections from 1984 through 2012. which statement best compares the spread of the data sets