The positive skewness of distribution could be caused by a value close to the mean. Thus, option C is correct.
The normal distribution is somewhat similar where the main observation (mean or its surrounding) occurs frequently and as we go far from the mean, its chances decrease.
Normal distribution of proportion: The sampling distribution of the proportion we're talking about should be normally distributed.
A skewed distribution is a distribution having bias on one of the two sides (either left or right).
The positive skewness of distribution could be caused by a value close to the mean.
Thus, option C is correct.
Learn more about normal distribution here:
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