Answer:
Step-by-step explanation:
Given that the proportion of murders with firearm is 79.2 %
Each murder is independent and there are two outcomes either with fire arm or without fire arm.
Hence X no of murders with fire arm is binomial with n = 200 and p = 0.792
q=1-0.792 = 0.208
a) Expected value of x = np
b) P(X=173) = 0.002289
Since probability is very low it can be concluded it would be unusual to observe 173 murders by firearm in a random sample of 200 murders
I don't know if I did it right but if u multiply 8 by 24 u get 192 I hope I helped <span />
Answer:
C = 3pi cm or approximately 9.42 cm
Step-by-step explanation:
The formula for circumference of a circle is given by
C = pi *d
C = pi *3
C = 3pi
or approximately
C = 3*(3.14)
=9.42 cm
Answer:
3/5
Step-by-step explanation:
Answer:
9 sides
Step-by-step explanation:
Each interior angle of a regular polygon is 100 degrees larger than the exterior angle determine the number of sides of the polygon
Interior angle + exterior angle =
180°
Let x be the exterior angle.
Exterior angle = 180-x = 100 + x
= 180 - 100 = x + x
80 = 2x
x = 80/2
x = 40
Number of sides of the polygon =
= 360°/Exterior angle
Exterior angle = 40°
= 360/40 = 9 sides