A spinner has three sections. The table shows the results of spinning the arrow on the spinner 80 times.
Section 1 18
Section 2 30
Section 3 32
What is the experimental probability of the arrow stopping over Section 3?
A. 1/3
B. 1/32
C. 3/32
D. 2/5
0.4
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32/(18+30+32) = ?
A spinner has three sections. The table shows the results of spinning the arrow on the spinner 80 times.
What is the experimental probability of the arrow stopping over Section 2?
Responses
136
1 over 36
118
1 over 18
920
9 over 20
911
9 over 11
Section 1 Section 2 Section 3
20 36 24
The arrow stopped over Section 2 36 times out of 80 total spins. So, the experimental probability of the arrow stopping over Section 2 is:
36/80 = 9/20
Therefore, the correct answer is:
9 over 20
A card was selected at random from a standard deck of cards. The suit of the card was recorded, and then the card was put back in the deck. The table shows the results after 40 trials.
What is the relative frequency of selecting a heart?
Responses
15%
15%
25%
25%
27%
27%
35%
We are given that the card was put back in the deck after each trial, so the probability of selecting a heart is always 1/4 (since there are 13 hearts out of 52 cards in a standard deck).
The relative frequency of selecting a heart is the number of times a heart was selected in the 40 trials divided by the total number of trials (40). From the table, we see that a heart was selected 11 times out of 40 trials.
So, the relative frequency of selecting a heart is:
11/40 = 0.275 = 27.5%
Therefore, the correct answer is:
27%
The table shows the results of rolling a number cube with sides labeled 1 through 6 several times.
What is the experimental probability of rolling a 3 or a 6
The table is not provided, so we cannot directly determine the experimental probability of rolling a 3 or a 6.
However, if we assume that the number cube was rolled a large number of times and that the rolls were evenly distributed across all six possible outcomes, then we can estimate the experimental probability of rolling a 3 or a 6.
Out of the six possible outcomes (rolling a 1, 2, 3, 4, 5, or 6), two of them (3 and 6) meet the condition of interest. Therefore, the probability of rolling a 3 or a 6 is:
P(rolling a 3 or a 6) = P(rolling a 3) + P(rolling a 6)
Since each outcome (rolling a 1, 2, 3, 4, 5, or 6) is equally likely, the probability of rolling a 3 or a 6 is:
P(rolling a 3 or a 6) = P(rolling a 3) + P(rolling a 6) = 1/6 + 1/6 = 2/6 = 1/3
Therefore, the experimental probability of rolling a 3 or a 6 is approximately 1/3.
Question
A jar contained 12 red marbles, 16 green marbles, and 10 blue marbles. A marble was selected at random, the color was recorded, and the marble was placed back in the jar. The table shows the results after 80 trials.
What was the relative frequency of selecting a green marble