Answer:
Step-by-step explanation:
Pooled proportion
The hypothesis null would be
Alternate can be either not equal to or < or > according to need
Std error for difference of proportions
Hence test statistic = p difference/std error
= 
where p is given as above as combined proportion.
The answer to that question should be 75 because S represents the additional cups of sugar Nate buys and since he bought 30 additional cups that means S equals 30
Answer:
.25
Step-by-step explanation:
50÷195=.2564102564
about a 25% chance to hit the ball
Answer:
The first one is m A + 30 + 90 = 180
Second is 60
Step-by-step explanation:
A triangle’s added up angles ALWAYS equals 180.
The formula here is to subtract the two known angles from 180 and the answer leaves you with the unknown angle.
180 - 90 - 30 = A
So,
180 - 90 - 30 = 60
You can check by adding all the angles and it adding up to 180
90 + 30 + 60 = 180
