5 x 10 over 5 i need help please

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%

Which of the following statement about pascal's triangle are true?

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i