The average wingspan of a certain species of butterfly is 5….

The average wingspan of a certain species of butterfly is 5.5 centimeters, with a standard deviation of 0.3 centimeters. A researcher captures a butterfly of this species with a wingspan of 5.87 centimeters. What is the approximate z-score for this butterfly’s wingspan?

Knowing that Coke tested pH of 2.52; black coffee has a pH o…

Knowing that Coke tested pH of 2.52; black coffee has a pH of 5.0; pure water at room temperature has a pH of 7.0; and household bleach has a pH of around 11 – based on this information, which of these substances is: the most acidic: [1] the most alkaline: [2].