Answer:
ok sooo is there something you need to be figured out orr are you just saying
Step-by-step explanation:
Answer:
-6,-8
Step-by-step explanation:
Answer:
P(X<65)=0.9452
Step-by-step explanation:
This is a normal distribution problem.
-Given the mean age is 53 years and the standard deviation is 75, the probability of dying before age 65 is calculated as:

#We check the value of z=1.60 on the z table:

Hence, the probability of dying before 65 is 0.9452
In the numerator, we can pull a 7 out of the expression 7x + 14 to get the product 7(x + 2). In the denominator, we can factor the expression 2x² + x - 6 like this:

Our fraction can now be written as

the only factor the numerator and denominator share in this case is x + 2.