Question

A football quarterback has 2 more chances to throw a touchdown before his team is forced to punt the ball. He misses the receiver on the first throw 30% of the time. When his first throw is incomplete, he misses the receiver on the second throw 10% of the time. What is the probability of not throwing the ball to a receiver on either throw?

Answer 1

Ah this is best handled using a tree logic

Answer 2

So on the first throw either he make the throw or doesn't

Answer 3

So 70% of the time he will succed the first time

Answer 4

The remaining 30% of the time he misses on the first throw

Answer 5

So then he has to miss again which he does 10% of the time

Answer 6

So has to miss once .30 followed by miss again .10

Answer 7

so multiply the two together .30*.10

Answer 8

.03

Answer 9

That is probably the answer or 3% of the time he will miss twice.

Answer 10

okay

Answer 11

Andria is conducting an experiment to determine whether a new medication is effective in reducing swelling. She gets 1,000 volunteers with swelling and divides them into 2 groups. The control group does not receive any medication; the treatment group receives the medication. The patients in the treatment group show reduced signs of swelling. What can Andria conclude from this experiment?

Answer 12

Something done to the treatment group reduced signs of swelling probably

Answer 13

oh i got that one

Answer 14

Hopefully the group was picked randomly, and no guarantee though that is was the medication

Answer 15

i figured out the last one so were all done, thanks a lot

Answer 16

Ok good have a good day