Examine the following table. x
1
2
3
4
5
P(x)
0.2
0.3
0.4
0.1
0.05

Does this table represent a probability distribution? Explain your answer.
a.
Yes, because the sum of the probabilites is less than one.
b.
Yes, because the sum of the probabilities is more than one.
c.
No, because the sum of the probabilities is more than one.
d.
No, because the sum of the probabilities is less than one.

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

answer: 10 turtles

step-by-step explanation: as turtles have four legs so 4.10=40 therefore birds are 4 which sue counted

are ya tryin to ask something or is this a statement