Answer:
Step-by-step explanation:
Total voters = 900
Republicians =369
Democrats =468
Independents = 63
Sample size n =90
a) The expected value of the number of Republicans in the sample is
=
b) The chance the sample contains only Republicans and Democrats is
= (no of republicians+democrats)/total people
=
c)
Answer:
The answers are C and E
-----------------------------
Step-by-step explanation:
<h2>1).</h2>
The sum of interior angles of a polygon is given by
<h3>( n - 2) × 180°</h3>
where
n is the number of sides
From the question, the number of sides is 50 that's n = 50 .
Substitute the value into the above formula and solve.
We have
(50 - 2 ) × 180 = 48 × 180
<h3>The answer is 8640°</h3>
<h2>2).</h2>
The sum of interior angles of a polygon is given by
<h3>( n - 2) × 180°</h3>
where
n is the number of sides
From the question the sum of the angles is 2160°
Substitute the values into the above formula and solve for the number of sides.
That's
2160 = (n - 2) × 180
2160 = 180n - 360
180n = 2160 + 360
180n = 2520
Divide both sides by 180
n = 14
<h3>Therefore the number of sides is 14</h3>
<h2>3).</h2>
The exterior angle of a polygon can be found by using the formula
<h3>
</h3>
where
n is the number of sides
From the question the number of sides is 6 that's n = 6.
Substitute the value into the above formula and solve.
We have
<h3>
</h3>
We have the final answer as
<h2>60°</h2>
Hope this helps you.
Nope. They are not equal.
Answer:
D. ⅔
Step-by-step explanation:
I hope it helps :)