Use the given line(s) from a random number table to select numbers to use in each problem. Select 2 contestants for a game show
1 answer:
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Answer:
The correct answer is = 0.33.
Step-by-step explanation:
A uniform random variable is used to describe the outcome of an experiment with the parameters being 50 and 80.
Probability density function = f(x) =
Here a = 50 and b = 80.
We need to find the value of probability of this given experiment in an outcome less than 60.
∴ P(X<60) = = 0.33.
Thus the required probability is given by 0.33.
Answer:
(a) 1155.84
(b) 48.2%
(c) D
Step-by-step explanation:
The number of total responses is, <em>N</em> = 38,528.
(a)
It is provided that 3% answered with "a lot".
Compute the actual number of responses consisting of "a lot" as follows:
n (a lot) = N × P (a lot)
= 38528 × 0.03
= 1155.84
Thus, the actual number of responses consisting of "a lot" is 1155.84.
(b)
The number of responses consisting of "very little or none" is,
n (very little or none) = 18,566
Compute the percentage of responses consisted of "very little or none" as follows:
The percentage is: 0.482 × 100% = 48.2%.
Thus, the percentage of responses consisted of "very little or none" is 48.2%.
(c)
As the sample size increases the sample statistic value gets closer and closer to the actual population parameter value.
Thus, making the sample statistic an unbiased estimator of the population parameter.
And proving that the sample is a true representative of the population.
Thus, the correct option is (D).