The weight of potato chips in a medium-size bag is stated to be 10 ounces. the amount that the packaging machine puts in these bags is believed to have a normal model with mean 10.2 ounces and standard deviation 0.12 ounces.
what's the probability that the mean weight of the 3 bags is below the stated amount?
a. 0.069
b. 0.0478
c. 0.9522
d. 0.0019

d. 0.0019

Step-by-step explanation:

Given : The weight of potato chips in a medium-size bag is stated to be 10 ounces.

The amount that the packaging machine puts in these bags is believed to have a Normal model with mean 10.2 ounces and standard deviation 0.12 ounces.

i.e.   and

Let x represents the weight of potato chips in a medium-size bag.

The probability that the mean weight of the 3 bags (i.e. sample size = 3) is below the stated amount will be :-

Hence, the required probability =0.0019

mxb67

step-by-step explanation:

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet