X is equal to 3.75
Hope this helps :)
Angle (8x)⁰ and angle (2x+60)⁰ are congruent angles as corresponding angles.
So,
8x = 2x+60
8x - 2x =60
6x = 60
x=10
Answer C. 10
Answer:
that means that there are 9 boys
Step-by-step explanation:
because 18÷9=2
I assumed that 3 households are sampled.
Now, is the number in each of these households equal to 1, 3 and 8 people?
Next, the question says, samples of n=2 are randomly selected (with replacement) from these 3.
So are sample space is
11
13
31
33
18
81
38
88
83
88
This is done 9 times.
Is that how you understand the problem?
When they select the household with only 1 person, the variance is 0
When they select the household with 8 people, they variance will be from a discrete uniform distribution
Similarly for household with 3 individuals.