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A school cafeteria manager surveyed students on how many days per week they buy lunch there. The results for a random sample are shown in the table below, where k is an unknown frequency:
It is known that the mean number of days per week a student buys lunch is 2.3.
State whether this variable is discrete or continuous.
Find the value of k.
To select this sample, the manager listed all students by their student ID number and then asked every 8th student on the list to complete the survey. Identify the sampling technique used.
A school cafeteria manager surveyed students on how many days per week they buy lunch there. The results for a random sample are shown in the table below, where k is an unknown frequency:
It is known that the mean number of days per week a student buys lunch is 2.3.
State whether this variable is discrete or continuous.
Find the value of k.
To select this sample, the manager listed all students by their student ID number and then asked every 8th student on the list to complete the survey. Identify the sampling technique used.