Melody

1/3

A round trip is to a destination and then back again.

So it saying that for 60 percent of the population the tip site is 2.5 miles futher away.  That will make the round trip 5 miles further.

The area is referring to the area of the tipping site.

I hope that helps ://

Thanks 315

I was suspicious of my answer but I was too tired or lazy to think it through properly. ://

Sorry,

Here is the graph :)

Ok I think I have it now :))

It is noted that 8% of students are left handed. If 20 (TWENTY) students are randomly selected,

P( no one in a class of 20 is left handed) = 0.92^20            =  0.18869

P( one or more in a class of 20 is left handed = 1-0.18869 =   0.81131

(b) If 50 (FIFTY) classes of 20 (TWENTY) students are randomly selected, what is the probability that 10 (TEN) classes have no left-handed students?

P(10 classes of 20 students have no left-handed students)   

= 50C10 * 0.18869^10 * 0.81131^40

nCr(50,10) * 0.18869^10 * 0.81131^40 = 0.1369710474047608673359021944148508674768838

The probability is 0.137   

Thanks guest,

I do not have irish ancestry but I certainly enjoyed your offering of irish humour :))

Hi Cole :)

Also, if the square root is in the question the answer muct be positive.  This is by convention.

so although

\(4^2=16 \qquad    and\qquad (-4)^2=16\\~\\ \sqrt{16}=+4\)

Your posts are unmistakable Ginger.  :)

If you have had some posts disappear someone must have thought they were worth while scooby snacks, but to be fair scooby snacks come in many different flavours. :)

Your Dad sounds like a LOT of fun.  What a lucky child you were.   

I am a bit confused Ginger, does your cat share your banana daiquiri with you as you drip in the imperial minims of rum?

Sounds like it to me.  Does you daiquiri have the added flavour of cat fur ?