Answer:
17
Step-by-step explanation:
Im not completely confident but Im like 99.8% sure of it.
Answer: unbiased; simple random sampling
Step-by-step explanation:
From the question, we are informed that John wanted to know about the popularity of a particular movie and that he surveyed 20% of the people in 5 different theaters.
This is an unbiased sample. This is because everybody at the theaters have an equal chance of being chosen by John.
Also, it's a simple random sampling. This is because a subset of the entire population is randomly selected.
The empirical rule says that approximately 68% of a normal distribution falls within one standard deviation of the mean. In this case, this would include all values of the variable in the interval
.
So she divided the 2/3 between 4 friends.
So each friend got 2/3 divided by 4, which gives:
(2/3)*(1/4) = 2/12 = 1/6
The width of his office on the floor plan is 2.5 in.
