Answer:
The values or the original sample are:
• Mean = 16
,
• Standard deviation = 6
Step-by-step explanation
After ever score in a sample is multiplied by 3, the mean and standard deviation are also multiplied by 3.
Given that the mean and standard deviation after multiplication are 48 and 18 respectively, their values for the original sample are as follows:
Mean = 48/3 = 16
Standard deviation = 18/3 = 6