Suppose That There Are Two Buckets $\frac { 2 } { 3 } .$

question 139

Multiple Choice

Suppose that there are two buckets. Bucket 1 contains 3 tennis balls and 5 ping -pong balls. Bucket 2 contains 4tennis balls, 3 ping-pong balls, and 5 baseballs. An unfair coin will decide from which bucket we draw. Headsimplies we draw from Bucket 1 and tails implies we draw from Bucket 2. The probability of heads is 13 and theprobability of tails is $\frac { 2 } { 3 } .$ What is the probability of drawing a baseball? Round to the nearest thousandth whennecessary.

• A) 0.277
• B) 0.723
• C) 0.25
• D) 0.417

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Definitions:

Midbrain

A portion of the brainstem that plays an important role in vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.

Pons

A part of the brain located above the medulla oblongata and in front of the cerebellum, playing key roles in the regulation of breathing and sleep.

Hypothalamus

A region of the brain that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems.

Eyeball

The globular organ housed in the orbit of the skull through which we see, consisting of the cornea, lens, retina, and more.