help me!

Question

help me!

anonymous · Answer

@dramaqueen

anonymous · Answer

is this one stems or flower..?

anonymous · Answer

flower

anonymous · Answer

and this one would be stem?
Buds are found on the  (1 point)flowers.
leaves.
stems.
stems and roots.

anonymous · Answer

The police department is keeping track of distracted drivers and accidents. They have found that if a driver is distracted, the driver has a 30% chance of being in an accident. If the driver is not distracted, the driver has a 2% chance of being in an accident. The probability of a driver being distracted is 10%. If needed, create a tree diagram on a separate piece of paper. Then use the diagram to answer the questions. 

a. What is the probability a driver will be in an accident? Explain. 
b. What is the probability that a driver who was in an accident was distracted? Explain.

anonymous · Answer

@jim_thompson5910

jim_thompson5910 · Answer

Draw out a tree to get this

|dw:1364249812316:dw|

jim_thompson5910 · Answer

Now find the probability of each branch 

so for instance the first uppermost branch would be 0.1*0.3 = 0.03

|dw:1364249966115:dw|

jim_thompson5910 · Answer

To find the probability of being in an accident, add up the accident probabilities to get

0.03+0.018 = 0.048

jim_thompson5910 · Answer

What is the probability that a driver who was in an accident was distracted? 

P(Distracted|Accident) = P(Distracted and Accident)/P(Accident)

P(Distracted|Accident) = ???