The distribution of actual weight of tomato soup in a 16 ounce can is thought to be bell-shaped with a mean equal to 16 ounces, and a standard deviation equal to 0.25 ounces. based on this information, between what two values could we expect 95% of all cans to weigh?

Between 15.5 and 16.5 ounces

Step-by-step explanation:

If the distribution is bell-shaped it follows a normal distribution.

In a normal distribution you except the 95% of the values between +-2 standard deviation from the mean.

lower limit = 16 - 2 * 0.25 = 15.5

upper limit = 16 + 2 * 0.25 = 16.5

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

ok then what happened.