The x (the second one) has a one in front of it so 5x *1x=5x so 5x-4 is the answer
<span>P(at least 1 ) = 1 - P(exactly none) = 1 - (4/5)^6 = .738
Hope this helps!!!:)</span>
It is adding one little percentage of increase here. or, 1.1 each time....hope that this helps.
The dog with the weight of 110lbs is the outlier in the equation--since the other dogs only range from 20 to 35 lbs.
