Answer:
Option D
Step-by-step explanation:
Generally the equation for Margin of Error is mathematically given by
Condition for Largest M.E
n has to be smallest and Z value has to be largest.
Where
From options
Smallest
Largest Z value respects to
Therefore
n= 300, confidence level 95%
Option D
Answer:
The circumference is equal to
Step-by-step explanation:
we know that
by proportion
Answer: 1 ⁸/₂₁ litres
Step-by-step explanation:
First find a common multiple to enable you add them up:
= 21
21 will be the denominator.
Multiply each numerator by the number you get when you divide 21 by the denominator.
= 21/3 = 7
= 7 * 2 = 14
= 21/7 = 3
= 3 * 5
= 15
litres