72 2.18 Siblings The histogram shows the distribution of the numbers of siblings (brothers and sisters) for 2000 adults surveyed in
the 2012 General Social Survey.
a. Describe the shape of the distribution.
b. What is the typical number of siblings, approximately?
c. About how many people in this survey have no siblings?
d. What percentage of the 2000 adults surveyed have no siblings?
400-
300
Frequency
200
100 -
0
2
4
6 8 10 12 14
Number of Siblings

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.