If you want the intersect of M and N, then:
M∩N = {4,7} (common part in M AND N)
<span>5.17490 rounded to the nearest thousandth is 5.175</span>
the dot plot, because box plot only shows the 5 number summary and histograms show ratios
If a=0, then the denominator is equal to 0. Since you cannot divide by zero, you are not allowed to do this.
Hope This helps!