Question

The mean of 19 observations is 4. If one more observation of 24 is added to the data, the new mean will be

Answer 1

Read Solution (Total 1)

Read Solution (Total 1)1st + 2nd + ----- + 19th =24 x 19 = 456 (eq 1)

Read Solution (Total 1)1st + 2nd + ----- + 19th =24 x 19 = 456 (eq 1)1st + 2nd + --- + 10th = 170 (eq 2)

Read Solution (Total 1)1st + 2nd + ----- + 19th =24 x 19 = 456 (eq 1)1st + 2nd + --- + 10th = 170 (eq 2)10th + 11th + ---- +19th = 240 (eq 3)

Read Solution (Total 1)1st + 2nd + ----- + 19th =24 x 19 = 456 (eq 1)1st + 2nd + --- + 10th = 170 (eq 2)10th + 11th + ---- +19th = 240 (eq 3)eq 1 - eq 2

Read Solution (Total 1)1st + 2nd + ----- + 19th =24 x 19 = 456 (eq 1)1st + 2nd + --- + 10th = 170 (eq 2)10th + 11th + ---- +19th = 240 (eq 3)eq 1 - eq 211th + 12th + ----- +19th = 456-170=286 (eq 4)

Read Solution (Total 1)1st + 2nd + ----- + 19th =24 x 19 = 456 (eq 1)1st + 2nd + --- + 10th = 170 (eq 2)10th + 11th + ---- +19th = 240 (eq 3)eq 1 - eq 211th + 12th + ----- +19th = 456-170=286 (eq 4)eq 3 - eq 4

Read Solution (Total 1)1st + 2nd + ----- + 19th =24 x 19 = 456 (eq 1)1st + 2nd + --- + 10th = 170 (eq 2)10th + 11th + ---- +19th = 240 (eq 3)eq 1 - eq 211th + 12th + ----- +19th = 456-170=286 (eq 4)eq 3 - eq 410th= -46

Read Solution (Total 1)1st + 2nd + ----- + 19th =24 x 19 = 456 (eq 1)1st + 2nd + --- + 10th = 170 (eq 2)10th + 11th + ---- +19th = 240 (eq 3)eq 1 - eq 211th + 12th + ----- +19th = 456-170=286 (eq 4)eq 3 - eq 410th= -46ans = -46