Please do it as fast as it is possible

What is the value of the digit 1 in the number 13?

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.