Answer:
a. 4600
b. 6200
c. 6193
Step-by-step explanation:
Let
the number of elements in A.
Remember, the number of elements in
satisfies

Then,
a) If
, and if 
Since 
So

b) Since the sets are pairwise disjoint

c) Since there are two elements in common to each pair of sets and one element in all three sets, then

Sent a picture of the solution to the problem (s).
Step-by-step explanation:
The formula for a parallelogram is A=Base x Height
So you multiply the base, which is 6, and the height, which is 4.
A=6x4
Hope it helps!
Answer:
I'm pretty sure it's none of the above
Step-by-step explanation:
Sorry if you get it wrong :/
Answer:
0.683
Step-by-step explanation:
We have to find P(-1<z<1).
For this purpose, we use normal distribution area table
P(-1<z<1)=P(-1<z<0)+(0<z<1)
Using normal area table and looking the value corresponds to 1.0, we get
P(-1<z<1)=0.3413+0.3413
P(-1<z<1)=0.6826
Rounding the answer to three decimal places
P(-1<z<1)=0.683
So, 68.3% of the z-scores will be between -1 an 1.