Answer:
a)
Theoretical: 10/30 = 1/3
Experimental: 12/30 = 6/15
Step-by-step explanation:
the theoretical probability is if every number was rolled an equal amount of times. as there are 3 options and a number was chosen 30 times, if we divide 30 by 3 we will get the theoretical probability of choosing a 2
30 ÷ 3 = 10
the theoretical probability = 10/30 or simplified 1/3
the experimental probability is the result when one of the numbers from
1 to 3 were actually randomly selected 30 times. the chart shows that the 2 was selected 12 times out of 30 therefore the experimental probability = 12/30 or simplified 6/15
Theoretical:
fraction: 1/3
decimal: 0.33∞
percentage: 33%
Experimental:
fraction: 6/15
decimal: 0.4
percentage: 40%
I hope this was helpful :-)
Answer:
Step-by-step explanation:
Solve each equation and compare the solutions
1.
- 2(a - 1.1) = 5.8
- a - 1.1 = 5.8/2
- a - 1.1 = 2.9
- a = 2.9 + 1.1
- a = 4
2.
- (5/2)b - 2 3/4 = 7 1/4
- 2.5b = 7 1/4 + 2 3/4
- 2.5b = 10
- b = 10/2.5
- b = 4
Both a and b have same value
Answer: the answer is -1
Step-by-step explanation:
