Answer:
3/4
Step-by-step explanation:
A: students present
B: students on time
P(all students present and on time) = P(A and B) = 3/10
P(all students present) = P(A) = 2/5
P(A and B) = P(A).P(B|A) where P(B|A) is the probability of everyone being on time given that everyone is present
So P(B|A) = P(A and B) /P(A) = 3/10 ÷ 2/5 = 3/10 * 5/2 = 15/20 which can be reduced to 3/4 by dividing numerator and denominator by 5
A. For each year a person ages his or her maximum heart rate decreases by 220 beats per minute.!
Answer:
B) -3, -2, 2, 3
Step-by-step explanation:
Integers are only whole numbers, negative or positive, but whole.
Marie Coolidge is a new employee. She has five years of experience in a similar job, where she was paid $45,000�$65,000. She has four years of higher education. Her current salary will be $55,000.
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