Answer:
All of it?!
for second problem divide.
Hope this helps some.
Answer:
Convert the fraction to a decimal, then multiply by
100.
48.34307992%
Step-by-step explanation:
2. When you write fractions with the same denominator, it helps you write them in numerical order because if they had different denominators, you would have to turn them into equal fractions to order them.
Answer:
Probability that at least 490 do not result in birth defects = 0.1076
Step-by-step explanation:
Given - The proportion of U.S. births that result in a birth defect is approximately 1/33 according to the Centers for Disease Control and Prevention (CDC). A local hospital randomly selects five births and lets the random variable X count the number not resulting in a defect. Assume the births are independent.
To find - If 500 births were observed rather than only 5, what is the approximate probability that at least 490 do not result in birth defects
Proof -
Given that,
P(birth that result in a birth defect) = 1/33
P(birth that not result in a birth defect) = 1 - 1/33 = 32/33
Now,
Given that, n = 500
X = Number of birth that does not result in birth defects
Now,
P(X ≥ 490) =
= + .......+
= 0.04541 + ......+0.0000002079
= 0.1076
⇒Probability that at least 490 do not result in birth defects = 0.1076
The answer is a) 1/8. This is because the chance of getting heads is 1/2 because there are 2 sides of a coin, and the chances of getting a red on the spinner is 1/4 because there are 4 choices on the spinner. Therefore, you just multiply 1/2 and 1/4 to get 1/8. Hope this helps!