Answer: C. 3
Step-by-step explanation:
All you have to do is change the whole number to a fraction. Say you have 4 divided by 1/2. All you have to do to make a whole number a fraction is put it over 1. So now you would have 4/1 (4 being the numerator) divided by 1/2. When you divide fractions always remember this; Keep, Switch, Flip. Keep 4/1, Flip the division sign to multiplication, and Flip 1/2 to make it 2/1. Then you multiply the numerators and the denominators. So 4/1 * 2/1 = 8/1. Hope this helped.
You need to put the graphs
Answer:
The best option is:
B.7.82
Step-by-step explanation:
Previous concepts
The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".
Data given
represent the real population proportion for residents born in Colorado
represent the estimated proportion for rsidents born in Colorado
is the sample size selected
Solution to the problem
Let X the random variable of interest (number of residents in the sample), on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
The expected value is given by this formula:
And the standard deviation for the random variable is given by:
The best option is:
B.7.82
Answer:
4x+11
Step-by-step explanation:
3 times 2x equals 6x
3 times 7 equals 21
(put that together) = 6x+21
2 times x equals 2x
2 times 5 equals 10
(put that together) = 2x+10
(put both of those equations together) = 6x+21-2-10 (minus 10 because u r subtracting 2+10 from 6x+21, so u have to subtract 2-10)
group the x's together.
so it would equal 6x-2x=4x+21-10
21-10 equals 11
so, answer is 4x+11
hope this helps. sorry if I didn't quite explain this so well, I'm not good with explaining how I got my work