Compute the missing frequencies `f_1` and `f_2` in the following data if the mean is `166frac(9)(26)` sum of observations is 52.

Find the missing frequency k from the following data if mean is 16.​

If the mean of the following data is 20.6. Find the missing frequency (x).

The mean of the following frequency distributions is 1.46 Find the missing frequencies.

Write True (T) or False(F) against each of the following statements: 5.2:3.9::3:4

In the following APs,find the missing terms in the boxes :- 5,square,square,9 1/2 .

If the mean of the following frequency distribution is 188. Find the missing frequencies f_1 x and f_2

Observe the following pattern and find the missing digits: 11111^2 = 1..3..5..3..1 .

Let f be an injective map with domain {x ,\ y ,\ z} and range {1, 2, 3} such that exactly one of the following statements is correct and the remaining are false. f(x)=1,\ \ f(y)!=1,\ f(z)!=2 . The value of f^(-1)(1) is (a) x (b) y (c) z (d) none of these