You Have Two Decks of 26 Cards

question 7

Short Answer

You have two decks of 26 cards. Each card in each of the two decks has a different letter of the alphabet on it. You pick at random one card from each of the two decks. A vowel is worth 3 points and a consonant is worth 0 points. Let X = the sum of the values of the two cards picked. Find E(X), V (X), and the standard deviation of X .

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Definitions:

Forceps

A medical instrument used to grasp, manipulate, or extract tissue or objects during surgical procedures.

Hemostat

A surgical tool used to control bleeding by clamping blood vessels during surgery.

Ratchet

A ratchet is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction.

Locking Mechanism

A device or feature designed to prevent movement or separation by locking parts together.