Pls Help Can i make -14/21 into a whole number?
1 answer:
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From the given discrete distribution, we have that:
- The mean of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.
- The variance is given by the sum of the difference squared between each observation and the mean, divided by the number of values.
- The standard deviation is the square root of the variance.
In this problem, the distribution is:
Hence, the mean is:
The variance is:
The standard deviation is:
More can be learned about discrete distributions at brainly.com/question/24855677
d.30
Answer:
Solution given:
x. f.
fx
13. 15.
195
14. 42
588
15. x.
15x
16. 10.
160
17. 3.
51
. n=70+x. =994+15x
we have
mean=sum/n
14.44=
14.44=
doing crisscrossed multiplication
(70+x)*14.44=994+15x
1010.8+14.44x=994+15x
15x-14.44x=1010.8-994
0.56x=16.8
x=16.8/0.56
x=30