Math, asked by surya5299, 9 months ago

please solve this please please

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Answered by kammarikalyani902

0

Answer:

For question (1)

mean=sum of Xi×Fi/no.of observations

=4*5+6*10+9*10+10*7+15*8/5

=20+60+90+70+120/5

=360/5

=72

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