Question

4. (a) The mean of the four variates a, 3, 4 and 5 is 3. Find the value of a.
(b) If the mean of 3,5,6, 2 and a is b, and the mean of 3,5, 6, 2, a and
b is a then find the values of a
and b.
5. (a) The mean of 16 variates is 8. If each variate is increased by 2 then find the mean of the new
variates.​

Answer 1

Answer:

11) Find four rational numbers between -3/4 and 5/6