1. The chance of heads of a random coin is picked according to the beta (1,1) distribution. For each part, you must show work or
reference a relevant section of the textbook. a) Find P(first toss is heads). b) Find P(first toss is heads, second toss is tails). c) Compare your answer in part b to the chance of {first toss is heads, second toss is tails} given that you are tossing a fair coin twice. Is it larger or smaller
1 answer:
You might be interested in
Answer:
D. 68.00%
Step-by-step explanation:
Population mean time (μ) = 32 hours
Standard deviation (σ) = 2 hours
Assuming a normal distribution, for any given number of hours 'X', the z-score is determined by:
For X=30
For a z-score of -1, 'X' corresponds to the 15.87-th percentile of a normal distribution.
For X=34
For a z-score of 1, 'X' corresponds to the 84.13-th percentile of a normal distribution.
The percentage of the garages that take between 30 and 34 hours to erect is:
The percentage is roughly 68%.