The distribution of actual weights of 8-ounce chocolate bars produced by a certain machine is normal, with a mean of 8.1 ounces and a standard deviation of 0.1 ounces. what weight should be put on the chocolate bar wrappers so that only 1% of bars are underweight?

We are given:

We have to first find the z value corresponding to area 0.01. Using the standard normal table, we have:

Now using the z-score formula, we have:

ounces.

Therefore, the weight that should be put on the chocolate bar wrappers so that only 1% of bars are underweight is 7.867 ounces.

b because it contains 40% of the possible results from the random list.  

0,1,2,3 v 4,5,6,7,8,9  

4 integers to 6 integers  

40% success vs 60% fail

step-by-step explanation:

the answer is:

mean: 6

mad: 2.14