What is the probability that a person who is above 35 years old has a hemoglobin level of 9 or above? Answer the question based on the data in the table.
ОА
0.357
Person's Age
OB 0.313
Hemoglobin
OC 0.531
Level
Less
than
25
years
25-35
years
Above 35
years
Total
OD
0.343
OE 0.432
21
32
76
129
49
52
Less than 9
Between 9
and 11
Above 11
Total
40
69
139
128
162
429

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit