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Social & Preventive Medicine Biostatistics 6e2c7cd0

Q. Which of the following true regarding the following two curves (Blue and red) overall?

A
Mean = Median = Mode
B
Mean = Median, not equal to Mode
C
Mean = Mode, not equal to Median
D
Mean, Median and Mode are not equal
High-Yield Explanation
(b) Mean = Median, not equal to ModeIn the given question,* Red curve is Bilaterally symmetrical, bell shaped curve, hence it's a Normal distribution- In Normal distribution, Mean = Median = Mode (Green vertical line)* Blue curve has two modes (both symmetrical too), hence it's a Bimodal distribution- Since Bimodal curve is symmetrical, its Mean and Mode would lie at intersection 'X', so Mean = Median (Black arrow)

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