A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 280280 babies were​ born, and 252252 of them were girls. Use the sample data to construct a 9999​% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective?

whatever you can spend with $11.53 or under.

step-by-step explanation:

20 - 8.47 = 11.53. take away the money he used for lunch from the starting amount of 20.

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

25/14 or 1.

step-by-step explanation:

the dots mean that it has infinitely more numbers behind it

step-by-step explanation:

a'(12.5,11.25)

slope=(y1-y2)/(x1-x2)