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
Anonymous... Don't be calling people STUPID when you can't even spell it or even give an answer. Next time think before speak and maybe you wont be the one sounding so STUPID! O-K-A-Y?
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
From the table, we see that a green marble was selected 34 times out of 80 total trials.
The relative frequency of selecting a green marble is the number of times a green marble was selected divided by the total number of trials (80).
So, the relative frequency of selecting a green marble is:
34/80 = 0.425 = 42.5%
Therefore, the correct answer is:
42.5%
Question
A six-sided number cube is rolled 300 times. The results are 120 even numbers and 180 odd numbers.
How does the relative frequency of rolling an even number compare to the theoretical probability?
Select from the drop-down menus to correctly complete the statements.
The relative frequency of rolling an even number is
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the theoretical probability. The theoretical probability is
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and the relative frequency is
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.
Question
A six-sided number cube is rolled 300 times. The results are 120 even numbers and 180 odd numbers.
How does the relative frequency of rolling an even number compare to the theoretical probability?
Select from the drop-down menus to correctly complete the statements.
The relative frequency of rolling an even number is
Choose...
the theoretical probability. The theoretical probability is
Choose...
and the relative frequency is
Choose...
.
Question
A six-sided number cube is rolled 300 times. The results are 120 even numbers and 180 odd numbers.
How does the relative frequency of rolling an even number compare to the theoretical probability?
Select from the drop-down menus to correctly complete the statements.
The relative frequency of rolling an even number is
Choose...
the theoretical probability. The theoretical probability is
Choose...
and the relative frequency is
Choose...
.
The relative frequency of rolling an even number is not given, but we are given that out of 300 rolls, 120 were even numbers.
The theoretical probability of rolling an even number is 1/2 since there are three even numbers (2, 4, and 6) and three odd numbers (1, 3, and 5) on a standard six-sided number cube, and the outcomes are equally likely.
To compare the relative frequency to the theoretical probability, we need to calculate the experimental probability of rolling an even number. The experimental probability is the number of even numbers rolled divided by the total number of rolls. In this case, the experimental probability of rolling an even number is:
120/300 = 0.4
So, the relative frequency of rolling an even number is 0.4, which is equal to the experimental probability.
The theoretical probability of rolling an even number is 1/2, which is different from the relative frequency (experimental probability).
Therefore, the correct statements to complete are:
The relative frequency of rolling an even number is equal to the experimental probability. The theoretical probability is 1/2 and the relative frequency (experimental probability) is 0.4.