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:
He can use the factors of 36 to determine the number of groups he can divide the class into such that they are equal.
The Factors (excluding 1) are;
2, 3, 4, 6, 9, 12, 18
Using these therefore he can divide them;
- Into 3 groups each with 12 people.
- Into 4 groups each with 9 people.
- Into 6 groups each with 6 people.
- Into 9 groups each with 4 people.
- Into 12 groups each with 3 people.
2.2 = 1.4d + 3.7 - 5.4d = 3.7 - 4d
4d = 3.7 - 2.2 = 1.5
d = 1.5/4 = 0.375
Answer:
y = 1/2x + 14
Explanation:
y = 1/2x + 14 is perpendicular to y = -x = 18 and passes through the slope (-6, 11)
Tip:
Desmos (the app) helps a lot with graphing problems.
Answer: Let me tell you
Step-by-step explanation:
Instead of asking on Brainly go on Google and search up Symbolab just see the calculator website and see how it is it can solve an algebraic equation and it tells you how step by step and when I mean step by step I mean every STEP!
