A die is rolled and the results are 1, 2, 1, 4, 5, 6, 1, 3, 6, 6, 5, 2, 3.
ANTONII [103]
<h3>
Answer: True</h3>
We have A = 2 copies of "2" showing up out of B = 13 rolls total
A/B = 2/13 = 0.1538 is the experimental probability of rolling a 2
Compare this with 1/6 which is the theoretical probability of rolling a 2 (since there is one side labeled "2" out of 6 sides total)
1/6 = 0.167 approximately
Comparing 0.1538 with 0.167 is fairly close
or you could argue that 2/13 is close to 2/12 = 1/6
Step-by-step explanation:
Quadratic term = Coefficient of x^2 term = 3.
Answer:
[143.61, 156.39]
Step-by-step explanation:
Because the population standard deviation is not available AND the sample size is less than 31, we can use a t procedure here.
Plug these values into your calculator:
Sample mean = 150
Sample size = 16
Standard deviation = 12
Confidence level = 95% = 0.95
and get [143.61, 156.39] as your confidence interval
Answer: t + 20 = 60; 40 minutes are spent answering phone calls.
Step-by-step explanation: We know that 20 minutes are spent out of a 60 minute day of volunteer work. So, with the equation, t + 20 = 60, we can solve to find out that 40 minutes are spent answering phone calls.
