Answer: you are on your own.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
These are 6 quesitons and 6 answers.
Question 1) <span>Estimate
the probability of drawing 1 yellow marble from a box that contains 20
red marbles, 30 blue marbles, 10 green marbles, and 40 yellow marbles.
</span>
<span>Answer: 2/5 = 0.4
</span>
<span>Explanation:
</span>
<span>1) Probability = number of positive events / number of possible events
</span>
<span>2) Positivie events: extracting 1 yellow marble
</span>
<span>3) Number of positive events = number of yellow marbles = 40
</span>
<span>4) Number of possible events = number of total marbles = 20 + 30 + 10 + 40 = 100
</span>
<span>5) probability = 40 / 100 = 2/5 = 0.4
</span>
<span>Question 2. Estimate the probability of drawing 1
yellow marble from a box that contains 60 red marbles, 120 blue marbles,
30 green marbles, and 90 yellow marbles.
</span>
Answer: 3/10 = 0.3
Explanation:
1) Probability = number of positive events / number of possible events
2) number of positive events = number of yellow marbles = 90
3) number of possible events = number of marbles = 60 + 120 + 30 + 90 = 300
4) probability = 90 / 300 = 3/10 = 0.3
Question 3. Estimate the probability of drawing 1 yellow marble from a box
that contains 30 red marbles, 40 blue marbles, 10 green marbles, and 20
yellow marbles.
Answer: 2/9 = 0.22
Explanation:
<span>1) Probability = number of positive events / number of possible events
</span>
2) number of positive events = number of yellow marbles = 20
3) number of possible events = number of marbles = 90
4) probability = 20 / 90 = 2/9 = 0.22
Question 4. Estimate the
probability of drawing 1 yellow marble from a box that contains 30 red
marbles, 40 blue marbles, 20 green marbles, and 10 yellow marbles.
Answer: 1/10 = 0.1
Explanation:
1) Probability = number of positive events / number of possible events
2) number of positive events = number of yellow marbles = 10
3) number of possible events = number of marbles = 30 + 40 + 20 + 10 = 100
4) probability = 10 / 100 = 1/10 = 0.1
Question 5. Estimate the probability of drawing 1
yellow marble from a box that contains 16 red marbles, 32 blue marbles,
32 green marbles, and 80 yellow marbles.
Answer: 1/2 = 0.5
Explanation:
<span>1) Probability = number of positive events / number of possible events
</span>
2) number of positive events = number of yellow marbles = 80
3) number of possible events = number of marbles = 16 + 32 + 32 + 80 = 160
4) probability = 80 / 160 = 1/2 = 0.5
Question 6. Estimate the probability of
drawing 1 yellow marble from a box that contains 90 red marbles, 120
blue marbles, 30 green marbles, and 60 yellow marbles.
<span>Answer: 1/5 = 0.2
</span><span>
</span><span>
</span><span>Explanation:
</span><span>
</span><span>
</span><span>1) Probability = number of positive events / number of possible events</span>
2) number of positive events = number of yellow marbles = 60
3) number of possible events = number of marbles = 90 + 120 + 30 + 60 = 300
<span />
4) probability = 60 / 300 = 1/5 = 0.2
