I have three posts saved as draft. I was going to do final editing for publishing when Lara oh-so-emphatically asked for assistance regarding this Statistical problem:

The distribution of weights of a product that is being mass produced at a certain factory was found to be a normal distribution with an average of 5.2 kg and a standard deviation of 0.1 kg. Products that weigh less than 5.0 kg are rejected during the company’s internal inspection process. What is the percentage of products manufactured at this plant that are rejected?

Standard normal distribution table
u P
0.0 0.500
0.5 0.309
1.0 0.159
1.5 0.067
2.0 0.023
2.5 0.006
3.0 0.001

a)　0.1 b)　0.6 c)　2.3 d)　4.6

Now, I was expected to answer this problem. It's fairly basic, that much I know. But I could only stare at it. It's like, I have this memory gap. I could not remember one single lesson in Stat I learned aside those from Stat 1.

All I could rack from my brain is that the average is the mean symbolized by u (mu) and P is the probability values. Since it is a normal distribution, we have a bell curve meaning the graph is symmetric echos echos.

I knowww I knew how to solve this kind of problems back then. I just don't know why my Statistical knowledge seemed to have entirely been eternal sunshined from my spotless mind. Poof! Gone.

Math geniuses Tiepee, Ele, Roan and Julz, a little help, please? This is verrry frustrating for moi.

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*.* as if! @ 11:56:00 AM • • RBJ