At a computer manufacturing company, the actual size of a particular type of computer chips is normally distributed with a mean of 1 centimeter and a standard deviation of 0.1 centimeter. A random sample of 12 computer chips is taken. What is the probability that the sample mean will be between 0.99 and 1.01 centimeters

So, the probability is P=0.27.

Step-by-step explanation:

We know that the mean of computer chips is 1 centimeter and a standard deviation of 0.1 centimeter. A random sample of 12 computer chips is taken.

We get:

We calculate:

We use a table  for standard normal distribution, and we calculate the probability:

So, the probability is P=0.27.

49%

step-by-step explanation:

when you realize that you dont know just realize i just took a test and im so smart

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation: