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PAGE: Find the missing frequency of thegrwhen the median is 24.120-30No. of shapes10-2020-3030-4040-50525?187 |
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Answer» f0-10 5 510-20 25 30|20-30| x 30+x30-40 18 38 +x40-50 7 55+x n/2=55+x/2 L=20 cf=30+x f=× h=10meadian =l+ (n/2-cf/f)×h 24=20+(55+x/2-[30])/x ×10 24=20+(55+x-60/2)/x ×10 24-20= x-5 /2×10 8x= 10x-50 8x-10x= -50 -2x= -50 x= -50/-2 x= 25 |
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