Find N(A)for the Set A) $n ( A ) = 38$

question 132

Multiple Choice

Find n(A) for the set.
- $A = \left\{ \frac { 1 } { 2 } , - \frac { 1 } { 2 } , \frac { 2 } { 3 } , - \frac { 2 } { 3 } , \frac { 3 } { 4 } , - \frac { 3 } { 4 } , \ldots , \frac { 19 } { 20 } , - \frac { 19 } { 20 } \right\}$

• A) \(n ( A ) = 38\)
• B) \(n ( A ) =\) Infinite
• C) \(n ( A ) = 40\)
• D) \(n ( A ) = 19\)

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Definitions:

Excess Reserves

The capital reserves held by a bank or financial institution in excess of what is required by regulators, creditors, or internal controls.

Money Supply

The total amount of monetary assets available in an economy at a specific time, including currency and various types of bank deposits.

Open Market Purchases

Actions by a central bank to buy securities in the open market to increase the money supply and lower interest rates, aiming to stimulate economic activity.

Reserve Requirement

The minimum amount of reserves a bank is mandated to hold by central banking authorities, akin to the reserve ratio.