Answer:
$789.75
Step-by-step explanation:
I'm just smart
The answer is B, if you substitute x with 0 1 or 2 the result will always be 0
Answer:
D 46 times the sum of 35 and 84
Answer:
2004
Step-by-step explanation:
if it was 2005 theyd be 15
Answer:
0.4967<p<0.6033
Not effective
Step-by-step explanation:
given that a clinical trial tests a method designed to increase the probability of conceiving a girl.
In the study 580 babies were born, and 319 of them were girls
Sample proportion p=
Standard error of proportion p =
Margin of error for 99%= Z critical * std error=
(Since sample size is large Z value is used)
Confidence interval 99%
=
0.4967<p<0.6033
This method appears to be not effective as the confidence interval 99% contains 0.50 indicating probability for girls is still 0.50