The weight of trucks traveling on a particular section of i-475 have a population mean of 15.8 tons and a population standard deviation of 4.2 tons. what is the probability a state highway inspector could select a sample of 49 trucks and find the sample mean to be 14.3 tons or less

0.0062

Step-by-step explanation:

Given : The weight of trucks traveling on a particular section of I-475 have a population mean of tons and a population standard deviation of tons.

Sample size : n=49

Let x be the random variable that represents the weight of trucks .

z-score :

For x= 14.3 tons

Now, the probability a state highway inspector could select a sample of 49 trucks and find the sample mean to be 14.3 tons or less will be :-

Hence, the probability a state highway inspector could select a sample of 49 trucks and find the sample mean to be 14.3 tons or less =0.0062

connie < felicia < stew

step-by-step explanation:

stew:

we need to find the slope

m = (y2-y1)/ (x2-x1)

    = (2650-795)/(10-3)

    = 1855/7

265 words per minute

connie:

we need to find the slope

m = (y2-y1)/ (x2-x1)

we have two points (0,0) and (4,800)

m = (800-0)/(4-0)

  m = 800/4

    200 words per minute

felicia:

260 words per minute

200< 260 < 265

connie < felicia < stew

y -5 = (-1/4)(x + 8)

step-by-step explanation: