Answer:
B
Step-by-step explanation:
Answer:

And the value for n rounded up would be n = 174
Step-by-step explanation:
We have the following info given:
previous estimation for the deviation
the margin of error desired
represent the confidence
The Margin of error is given by:

If we solve for the value of n we got:

For this problem we know that the confidence is 98% so then the significance level would be
and the critical value would be:

And replacing we got:

And the value for n rounded up would be n = 174
Parentheses then exponents then multiply then divided then add then substract
Answer:
Irrational numbers and real numbers
Step-by-step explanation:
x= number of boys in the club because it is unknown.
x + 7= the number total number of girls in the club.