Question 4
part a
describe a relationship that can be modeled by the function represented by the graph, and explain how the function models the relationship. a function that is a straight line between the points (0, 38) and (15, 38); the function forms an upward-opening parabola between the points (15, 38) and (65, 17). from there, the function forms a straight line from the point (65,17) to (87,30) and continues off the graph.
part b
identify and interpret the key features of the function in the context of the situation you described in part a.

x=half

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

step-by-step explanation:

use context clues to figure out the meaning of the bolded word:  

the sage gardener knew when she had to water her plants.  

question 8 options:

mint plant

wise

happy

lazy