Lin wants to know if flipping a quarter really does have a probability of 1/2 of landing heads up so she flips a quarter 10 times it land heads up 3 times and tails up 7 times has she proven that the probability is not 1/2 explain your reasoning

The answer is NO. Explained.

Step-by-step explanation:  Given that Lin wants to find out that if flipping a quarter really have a probability of 1/2 of head coming up. She flipped the coin 10 times, out of which heads come up 3 times and tail tail come up 7 times.

But this does not prove that the probability is not 1/2. The question here is about theoretical and experimental probability.

Theoretical probability deals with what we expect to happen. That is, whenever we flip a coin, we know either head will come up or tail, so theoretically there is 50% chance of head coming up and 50% chance of tail coming up. So, here probability will be 1/2.

Experimental probability deals with the actual happening. For example, if we flip a coin 10 times like Lin does, the 3 times head come up and 7 times tail come up. So, experimental probability of head coming up is 3/10, i.e., 30% and tail coming up is 7/10, i.e., 70%.

Thus, she didn't prove the the probability is not 1/2 but she explains the difference between theoretical and experimental probability.

the forst and 3rd

step-by-step explanation:

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.