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:
Distance between two consecutive tick marks is 0.05 units.
Step-by-step explanation:
We are given the following information in the question:
It is given that there are 20 ticks between two consecutive number.
Let n and n+1 be the consecutive number.
Formula:
Distance between two ticks =
Thus, distance between two consecutive tick marks is 0.05 units.
Answer:
22.5
Step-by-step explanation:
Hey there! first, we find 25% of 30 which equals 7.5 then we subtract 30 - 7.5 which is 22.5
The answer for this problem is 125
Answer:
Step-by-step explanation:
it's obtuse the sides are to wide
