Question

plz solve my question if u know that than answer.

Answer 1

Heya,

Average sugar level that is to be maintained = 130(mean)

Sugar level noted for 6 days are = 142, 131, 113, 110, 148, 139.

Let the sugar level on 7th day be 'x'

Now, we will apply the formula of mean i.e.
Mean = sum of all observations/number of observations

So, to maintain his sugar level the level of his sugar should be =>

130 = 142+131+113+110+148+139+x/7
130*7 = 783 + x
x = 910 - 783
x = 127 ...... Answer

Therefore his sugar level on 7th day should be 127.

Hope this helps you....:)
Have a good day ...