A Company Is Studying the Number of Daily Debit Card

question 73

Short Answer

A company is studying the number of daily debit card purchases. If there were 20 purchases and the probability of a debit card purchase is 0.5. Of the 20 purchases, what is the expected value of the number of debit card purchases? _________________

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Definitions:

Side Effects

Unintended reactions or responses to a medication or treatment, which can range from mild to severe and may affect how the treatment is administered.

Electroconvulsive Therapy

A medical treatment involving the application of brief electrical currents to the brain, used primarily to treat severe depressive and psychotic disorders.

Obsessive-compulsive Disorder

A mental disorder characterized by recurrent, unwanted thoughts (obsessions) and/or repetitive behaviors (compulsions).

Generalized Anxiety Disorder

Psychological disorder marked by persistent anxiety for at least six months, and in which the individual is unable to specify the reasons for the anxiety.