A number cube is rolled 160 times. The number 2 comes up 39 times. what is the experimental probability of rolling a 2? What is the theoretical probability of rolling a 2?
A. 39/160 ; 1/80
b. 1/6 ; 39/160
C. 39/160 ; 1/6
D. 121/160; 1/6
My answer is B. Is this right????
Wasn't there an "experiment" of rolling the dice 160 times? And it came up "2" 39 times
So the experimental prob must be 39/160
The theoretical probability is the actual mathematics one, so the "2" is one of the 6 sides, so the experimental prob is 1/6
looks like C to me
I am pretty sure that C is the answer. Since the theoretical is asking what is the theoretical probability of rolling a 2, it would be 1/6 because there is one 2 on a number cube. For experimental, you rolled the number cube 160 times and 39 of those rolls were 2, so 39/160; 1/6
THESE ARE THE ANSWERS, PROBABILITY TEST 1
Also i only got 13/18 right so i’ll just give you guys those ones, srry.
I also shortened the questions bc I didn’t want to write everything
3. A number cube is rolled 160 times, the number 2 comes up 39 times…
39/160:1/6
4. A spinner is divided into 11 equal sections numbered from 0-10…
6/11
6. Food express is running a special promotion…
3/46
7. A bag contains 4 green, 6 red, 14 orange, 5 brown and 8 blue marbles…
48/1369
8. Each of two urns contains green balls and red balls…
77/180
10. You have five $1 4 $5 six $10 and three $20…
5/51
12. The probability of a basketball player hitting a foul shot is 1/3…
30
13. A true-false test has 8 questions…
1/256
14. Simplify 5!
120
15. Simplify 10p4
5040
16. Simplify 8c5
56
17. You and 5 friends go to a concert…
720
18. You own 7 pairs of jeans…
21
Again, sorry for the missing answers, i dont want to be giving out wrong answers.
Hope this helped
Thank you for providing the answers to the probability test! This will definitely help those who took the test and want to compare their answers, and those who are preparing for a similar test in the future. Great job!
A spinner is divided into 11 equal sections numbered from 0 to 10. You spin the spinner once. What is P(not even)?
A. start fraction 3 over 5 end fraction
B. one-half
C. Start Fraction 5 over 11 End Fraction
D. Start Fraction 6 over 11 End Fraction
The numbers on the spinner that are not even are 1, 3, 5, 7, 9, which represents 5 out of the 11 possible outcomes. Therefore, the probability of getting a number that is not even is:
P(not even) = 5/11
The answer is C.
A bag contains 5 green marbles, 8 red marbles, 11 orange marbles, 7 brown marbles, and 12 blue marbles. You choose a marble, replace it, and choose again. What is P(red, then blue)?
A. Start Fraction 20 over 43 End Fraction
B. Start Fraction 40 over 43 End Fraction
C. Start Fraction 20 over 1849 End Fraction
D. Start Fraction 96 over 1849 End Fraction
The probability of selecting a red marble on the first pick is 8/43 (8 red marbles out of 43 total marbles). After replacing the first marble, the probability of selecting a blue marble on the second pick is 12/43 (12 blue marbles out of 43 total marbles).
Since we are looking for the probability of both events happening (red, then blue), we multiply their individual probabilities:
P(red, then blue) = P(red) * P(blue) = (8/43) * (12/43)
Simplifying the expression:
P(red, then blue) = 96/1849
The answer is D.
A bag contains 4 green marbles, 6 red marbles, 14 orange marbles, 5 brown marbles, and 8 blue marbles. You choose a marble, replace it, and choose again. What is P(red, then blue)?
ot please help
The probability of selecting a red marble on the first pick, with replacement, is 6/37 (6 red marbles out of 37 total marbles). After replacing the first marble, the probability of selecting a blue marble on the second pick, again with replacement, is 8/37 (8 blue marbles out of 37 total marbles).
Since we are looking for the probability of both events happening (red, then blue), we multiply their individual probabilities:
P(red, then blue) = P(red) * P(blue) = (6/37) * (8/37)
Simplifying the expression:
P(red, then blue) = 48/1369
The answer is therefore not provided, but it can be determined to be 48/1369.