The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code reader. Six samples are collected of the number of scanning errors per 1,000 scans. The samples had, respectively, 36, 14, 21, 39, 11, and 2 errors. Just to be sure, the manager has six more samples taken:

33, 45, 34, 17, 1, and 29 errors

How do the mean and standard deviation change, based on all 12 samples?

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)

l.ln.lln.k.nkl

step-by-step explanation:

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

pi x^2

step-by-step explanation:

pi times x squared