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in an article about investment alternatives, money magazine reported that drug stocks provide a potential for long-term growth, with over 54% of the adult population of the united states taking prescription drugs on a regular basis. for adults age 65 and older, 85% take prescription drugs regularly. for adults age 18 to 64, 45% take prescription drugs regularly. the age 18–64 age group accounts for 84.5% of the adult population (statistical abstract of the united states, 2008).

round your answers to 4 decimal places.

a. what is the probability that a randomly selected adult is 65 or older?

b. given an adult takes prescription drugs regularly, what is the probability that the adult is 65 or older?

for part b. the probability fraction is 17 over 20, or 17/20.

Step-by-step explanation:

the percentage of 65 years or older is 85% of the population. 85/100 simplified is 17/20.

a) Terrance's speed- 12  

    Jesse's speed -8

b) Teerance ;- 4 hr 10 min ; Jesse ;- 6 hr 15 min

c)  Sandra's speed :-  

Step-by-step explanation:

Terrance runs

in an hour 6 miles

So in 1 hour he / she  runs miles

   = 12 miles.

So Terrance's speed is 12 ---(1)

Jesse's runs

In 15 minutes 2 miles

So, In 1 minute miles

So, in 60 minutes miles

                                                 = 8 miles

So, Jesse's speed is 8 ----------(2)

Terrance runs,

12 miles in 1 hour

so, 1 mile in hour

so, 50 miles in hour

= hour

=4  hour minutes

= 4 hour 10 minutes.

Jesse runs,

8 miles in 1 hour

so, 50 miles in hour

= hour

= 6 hour minutes

= 6 hour 15 minutes

Sandra runs,

in 45 minutes 8 miles

so, in 1 minute mile

so, in 60 minutes miles

= miles

So Sandra's speed is , ---------------- (3)