Asensitive measuring device is calibrated so that errors in the measurements it provides are normally distributed with mean 0 and variance 2.00. find the probability that a given error will be between -3 and 3.

0.9660

Step-by-step explanation:

Given: Mean :

Variance :

⇒ Standard deviation :

The formula to calculate z is given by :-

For x= -3

The P Value =

For x= 3

The P Value =

Hence, the probability that a given error will be between -3 and 3=0.9660

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation:

the answer is d

hope this