a. Let 
be a random variable representing the weight of a ball bearing selected at random. We're told that 
, so
where 
. This probability is approximately
b. Let 
be a random variable representing the weight of the 
-th ball that is selected, and let 
be the mean of these 4 weights,
The sum of normally distributed random variables is a random variable that also follows a normal distribution,
so that
Then
c. Same as (b).
Answer:
No, these triangles are not similar.
Step-by-step explanation:
Similar triangles have the same angle measures.
Knowing that the angles in a triangle add up to 180 degrees, find the missing angle, and you will see that the angles in the triangle are not congruent to each other, meaning that the triangles are not similar.
Answer:
10:6=10*7:6*7
10:6=70:42
70+42=112
White ball 70 and striped balls 42
xin lỗi nhưng không ai có thể hiểu bạn ở đây vì họ chỉ nói tiếng anh ở đây
Answer:
96
Step-by-step explanation:
3*4*8=96
