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JEE MAIN - Mathematics Hindi (2018 - 15th April Evening Slot - No. 9)
यदि आँकड़ों $$7,8,9,7,8,7, \lambda, 8$$ का माध्य $$8$$ है, तो इन आँकड़ों का प्रसरण है :
$$\frac{7}{8}$$
$$1$$
$$\frac{9}{8}$$
$$2$$
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