Answer:Gary-18 years brother-10 years
Step-by-step explanation:1st case: brother=1 yrs,gary=3 yrs=>after 6 after: brother =7 yrs gary=9 years
2nd case:......
3rd case:.....
4th case:brother:4 years gary:12 yrs=>after 6 yrs:brother=10 yrs gary=18 yrs=>18-10=8
Answer:
Maaf saya tidak paham
jadikan jawaban tercerdas, terimakasih
MEDIAN:
9 (middle)
MEAN:
(12 + 16 + 10 + 9 + 20 + 11 + 20) / 7 = 14
RANGE:
Highest value: 20
Lowest value: 9
Range: 20 - 9 = 11
INTERQUARTILE RANGE:
First quartile: 16 (It is between 12 and 10)
Third quartile: 11 (It is between 20 and 20)
Interquartile range: 16 - 11 = 5
Hope this helps ☺️<span>✌️
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