Answer:
In studies about new medicines, researchers usually give one group of patients the medicine that is designed to treat an illness. They give another group of patients a placebo, which is taken the same way as the medicine but does not actually contain the ingredients of any medicine. Different medicines are tested in different experiments, but the placebos usually contain the same non-medical ingredients. If both groups of patients are healed, then researchers cannot be sure whether the medicine caused improvement, but if the group given the medicine is healed while the group given the placebo remains ill, researchers can conclude that the medicine causes the illness to go away.
In medical experiments, which group receives placebos?
the experimental group
the control group
both the experimental and control groups
neither the experimental nor control group
Explanation:
Answer: External
Explanation: External search could be explained as the additional information gathered beyond an individual's personal knowledge or experience in a bit to influence the individual's decision on a particular product or topic. This additional information could include; information sought from friends and families, online or internet research on relevant site, blogs or publications.
Therefore, a buyer who asks a friend, checking the internet or visiting a showroom or make other enquiries beyond his personal knowledge in other to make buying decision is making an external search.
Videoconferencing, as most people use that. <span />
Answer:
filter
Explanation:
Some email programs let you use a filter to move incoming mail to a specific folder or to delete it automatically based on the content of the message.
The filter performs this role by either automatically deleting or moving to another location.
Most messages that are moved or deleted are unsolicited emails or spam messages.
Filtering of your mails helps so you ou can manage your incoming mail using filters to send email to a label, or archive, delete, star, or automatically forward your mail.
This is a way of organising your correspondence.
