X= 1st integer
x+2= 2nd integer
x+4= 3rd integer
Add the integers together
x + (x + 2) + (x + 4)= 279
combine like terms
3x + 6= 279
subtract 6 from both sides
3x= 273
divide both sides by 3
x= 91 first integer
Substitute x=91 to find 2nd & 3rd integers
2nd Integer
=x+2
=91+2
=93
3rd Integer
=x+4
=91+4
=95
ANSWER: The three test scores are 91, 93 and 95.
Hope this helps! :)
Answer:
Sample relative risk is 10.
Step-by-step explanation:
We are given the following in the question:
Group 1 of coal miners: 30 out of 150 get lung cancer.
Group 2 of non-coal miners: 5 out of 250 get lung cancer
Sample relative risk:
- It is the ratio of probability of an outcome in an exposed group to the probability of an outcome in an unexposed group.
Sample relative risk =
Thus, sample relative risk is 10.
If you're paying attention in your statistics class, you know that about 68% of the data lies within one standard deviation of the mean. That is, between
.. 20.6 -2.2 = 18.4
and
.. 20.6 +2.2 = 22.8
Selection A is appropriate.
Answer:B
I hope this helps and have a great day!
The answer is $28 because $7 × 4hrs = $28