U got 3 terms....(3x^2) and (4y)..dont know if its neg or pos, and (-1)
The cube root of 81 is 4.32674871092
There are 8 marbles so we want 8c2 which is 8*7/2 = 28
Answer:
The minimum sample size is
Step-by-step explanation:
From the question we are told that
The margin of error is
Given that the confidence level is 99% then the level of significance is evaluated as
Next we obtain the critical value of from the normal distribution table
The value is
Now let assume that the sample proportion is
hence
=>
Generally the sample size is mathematically represented as
Answer:
Step-by-step explanation: