Answer:
the x value is 41
x=77
y=62
z=41
Step-by-step explanation:
part 1:
2y-5+y+21+y=180
4y+17=180
4y=164
y=41
part 2:
w-2(41)-5=77
x-41+21=62
y-41
Answer:
(e) the mean number of siblings for a large number of students has a distribution that is close to Normal.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean
and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
By the Central Limit Theorem
The sampling distributions with a large number of students(at least 30) will be approximately normal, so the correct answer is given by option e.
Your answer will be B. Just message me if you have a question on how it's that answer
Answer:
B. 3
It says the answer is too short so im just typing random stuff
Answer:
1
Step-by-step explanation:
Area of Triangle = 1/2 x Base x Height = 1/2 x 16 x 1/8 =1