4. what is the slope of the line that goes through (6, 5) and (3, 1)?
3/4
- 3/4
4/3
- 4/3

5. the slope of the line that goes through (-3, -5) and (-3, -6) is
positive
negative
zero
underfined

Suppose medical records indicate that the length of newborn babies (in inches) is normally distributed with a mean of 20 and a standard deviation of 2.6. find the probability that a given infant is between 14.8 and 25.2 inches long.