A management information system (MIS) which uses both informal and formal information-gathering procedures is: a. Marketing intelligence system.
<h3>What is an information system?</h3>
An information system (IS) can be defined as a collection of computer systems and Human Resources (HR) that is used by a business organization or manager to obtain, store, compute, and process data, as well as the dissemination (communication) of information, knowledge, and the distribution of digital products from one location to another.
In Business management, marketing intelligence system is a type of information system (IS) which is designed and developed to uses both informal and formal information-gathering procedures to obtain strategic information from the marketplace.
Read more on marketing intelligence system here: brainly.com/question/14951861
#SPJ1
Complete Question:
Which of the MIS systems uses both informal and formal information-gathering procedures?
a. Marketing intelligence system
b. External environment reports system
c. Internal reports system
d. Consumer information support system