Question

3. (a) If the mean of 5, 11, 6, 4, 7, P and 10 is 8, find the value of P. If the mean of 10, 12, 16, 20, P and 26 is 17, find the value of P. ​

Answer 1

Step-by-step explanation:

(a)Mean =Sum of observation/number of observation

• 8=5+11+6+4+7+10+p/7
• 8*7=43+p
• 56-43=p
• 13=P

(b) mean=sum of observation/number of observation

• 17=10+12+16+20+27+p/6
• 17*6=85+p
• 102-85=p
• 17=p

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