Final answer:
In groups of mixed age ranges, one staff member is responsible for a specific number of children in any age group, including infants. The exact number depends on the guidelines or regulations set by the organization.
Step-by-step explanation:
In groups of mixed age ranges, one staff member shall be responsible for no more than a certain number of children of any age group, including children under 1 year of age.
The exact number would depend on the guidelines or regulations set by the specific organization or institution.
For example, if the guidelines state that one staff member can be responsible for a maximum of 4 children of any age group, then they would be responsible for no more than 4 infants, 4 toddlers, 4 preschoolers, 4 school-aged children, or 4 teenagers.
It is important to ensure that there is an adequate ratio of staff to children in order to provide proper care and supervision for the well-being and safety of the children.