Please Be sure to describe or define probability, sample space, event, and possi

Question

Please Be sure to describe or define probability, sample space, event, and possibly other terms. Step on how you got the answer. Thank you (This is the second time I am asking for help with this problem....please help...please write it out so I can read the writing and please complete all question (1-4) Thank you so very much.

Question #1: (Question 1 consists of question 1-4)

Your pet rock collection contains 8 small rocks, 2 large rocks, 4 jumbo rocks, and 6 gargantuan rocks. If you choose a rock from your collection at random, find the probability that you choose:

1. A jumbo rock

2. A large rock or gargantuan rock

3. Not a jumbo rock

4. Any rock

Explanation / Answer

The sample space for ever question is:

8+2+4+6=16

then,

1. The probability that you choose a jumbo rock= # jumbo rocks/sample space= 4/16= 0,25 o 25%

2. This is a probability of union, then = # large rocks + # gargantuan rocks/sample sapce= 2+6/16=8/16= 0,5 or 50%

3. The probability that you choose not a jumbo rock= # of the others rocks/sample space= 12/16= 0,75 or 75%

4. Any rock is 16/16= 100%

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