Answer:
The sample size will be "". A further explanation is given below.
Step-by-step explanation:
Let the sample size will be:
= n
The given values are:
Standard deviation,
= 1.4
ME,
= 0.3
As we know,
⇒
On putting the estimated values, we get
⇒
⇒
⇒
Answer:
you would write 2.20x = 22
Step-by-step explanation:
12 - 3 = 9
3 + 9 = 12
12 - 9 = 3
Let x be the number of red fish
3:5 = x:20
3/5 = x/20
(Cross method)
5x = 60
x =12
There are 12 red fish in the fish tank.
(-2,3) i believe this is correct