Aggregate window functions

SELECT
	ir.IncidentDate,
	ir.NumberOfIncidents,
    -- Fill in the correct aggregate functions
    -- You do not need to fill in the OVER clause
	___(ir.NumberOfIncidents) OVER () AS SumOfIncidents,
	___(ir.NumberOfIncidents) OVER () AS LowestNumberOfIncidents,
	___(ir.NumberOfIncidents) OVER () AS HighestNumberOfIncidents,
	___(ir.NumberOfIncidents) OVER () AS CountOfIncidents
FROM dbo.IncidentRollup ir
WHERE
	ir.IncidentDate BETWEEN '2019-07-01' AND '2019-07-31'
AND ir.IncidentTypeID = 3;