A particular fruit's weights are normally distributed, with a mean of 506 grams and a standard deviation of 19 grams.
If you pick one fruit at random, what is the probability that it will weigh between 464 grams and 536 grams

The authors use the word “backbone” in lines 3 and 39 to indicate that

Find an equation in standard form of the parabola that passes through (-2, 9), (-4, 5), and (1, 0)

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.