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shawn20034
28.09.2019 •
Mathematics
Answer fast ! the distribution of the values of a population is shown below, and a simple random sample is drawn from the population. based on this information alone, can the sample be used to make inferences about the population?
a. no, because the population values appear to be normally distributed.
b. no, because the population values do not appear to be normally distributed.
c. yes, because the population values appear to be normally distributed.
d. yes, because the population values do not appear to be normally distributed.
(i think it might be "b" but i'm not sure)
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Ответ:
Ответ:
C. Yes, because the population values appear to be normally distributed.
Step-by-step explanation:
Given is a graph which shows the distribution of values of a population
The graph has the following characteristics
i) Bell shaped
ii) symmerical about mid vertical line
iii) Unimodal with mode = median =mean
iv) As x deviates more from the mean probability is decreasing and also curve approaches asymptotically the x axis
Hence we find that the curve is a distribution of normal
Option C is right
C. Yes, because the population values appear to be normally distributed.
Ответ: