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Normal_ Exponential_ and Gamma Distributions MCQs for Competitive Exams

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Normal_ Exponential_ and Gamma Distributions MCQs for Competitive Exams

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Topic Notes: Normal_ Exponential_ and Gamma Distributions

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Normal_ Exponential_ and Gamma Distributions MCQs in Statistics are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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61
Which parameter change causes a normal distribution curve to appear wider and flatter?
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62
Which type of continuous probability distribution is characterized by a constant probability density function over a defined interval?
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63
If the parameter μ (mean) of an exponential distribution is 4, what is its variance?
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64
According to the empirical rule for a normal distribution, what percentage of data falls within one standard deviation of the mean?
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65
According to the empirical rule for a normal distribution, what interval around the mean covers approximately 68.27% of the data?
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66
Given a normal distribution with a mean of 55 and a variance of 49, what is the standard deviation?
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67
Which term best describes the shape of a normal distribution?
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68
What is the total area under the probability density function of a standard normal distribution?
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69
Which parameter of the normal distribution determines the spread or dispersion of the curve?
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70
Given a normal distribution with a mean of 45 and a standard deviation of 3, what is the value of x corresponding to a z-score of 2.5?
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