Multiply the z-score by the standard deviation:
2 x -1.5 = -3
Now add that to the mean:
49 + -3 = 46 inches.
Well, you have two cubes with six numbers on each, you figure out you have twelve numbers. so there are 6/12 if a chance
Yes, you can check this by setting the fractions equal to eachother and cross multiplying them. In this case both are equal to 100 therefore they're the same thing
Unit Price for bread A is 0.06 cents per ounce
Unit Price for bread B is 0.05 cents per ounce (rounded to the nearest thousandths/ cent)
So it would be better to buy bread b