Answer:
Mean = 910.2
Standard deviation = 12.8
Step-by-step explanation:
82% over the age of 25 are high school graduates.
A survey randomly selected students of certain country included 1110 who were over the age of 25 and 871 of them were high school.
n = 1110
p = 82% = 0.82
q = 1 - 0. 82
q = 0.18
Mean = np
= 1110*0.82
= 910.2
Standard deviation = √npq
= √ 1110*0.82*0.18
=√163.836
= 12.8
Answer:6
Step-by-step explanation:
-7+10-(-3)
Using BODMAS
-7+10+3
3+3=6
Answer:
3
Step-by-step explanation:
3/1 = 3
3 is the correct answer
Answer:
Y=697
Step-by-step explanation:
Substitute the x with 225.
Y=3(225)+22
Therefore x equals 697
Yes she should because it might be too small to have a effect on her thus it will not work
