Answer: 0.02
Step-by-step explanation:
Given: Sample size : 
The population proportion 
Then,
The formula to calculate the standard error is given by :-


Hence, the standard deviation of the sample proportions (i.e., the standard error of the proportion) is <u>0.02</u>.
Since he only makes commission on sales over $1000, he makes commission on $1500 (we find this by doing 2500-1000.) His commission is 15%, so find 15% of $1500:

So we know how makes $225 in commission.
Now we need to add this to his fixed pay to get his total pay:

So his total pay is $525, which is answer 'a'
Hope I helped, and let me know if you have any questions :)
The value of (-2)4 = -8
The value of (-2)^2 (4)= 16
Use the triangle angle theorem:
All interior angles of a triangle equal 180 degrees.
If you use the theorem you should get the first one 19,70,91
Answer: Yes, they equal
Explanation: (4 + 6) x 3 = 30 ; 10 x 3 = 30, 30 = 30