A.m of 10 numbers is 7 .a.m of 15 numbers is 12 then the mean of observation
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what is a .m?
Arithmetic mean
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7
Mean of observation is 10.
Answered by
26
A.m. of 10 numbers is 7, hence , value = 10 * 7 =70
A. m. of 15 numbers is 12, hence value = 15* 12 = 180
mean of observation = 70 + 180 / 10 + 15 = 250/ 25 = 10
Answer = 10
A. m. of 15 numbers is 12, hence value = 15* 12 = 180
mean of observation = 70 + 180 / 10 + 15 = 250/ 25 = 10
Answer = 10
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