Answer:
x= 8
y= 8/3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that twenty-three percent of automobiles are not covered by insurance (CNN, February 23,2006).
considering the total number of vehicles, probability for a randomly drawn vehicle not covered by insurance = 0.23
Each vehicle can be treated as independent of the other
Hence X no of vehicles not covered by insurance is Binom with n = 35 and p - 0.23
a) the expected number of these automobiles that are not covered by insurance=E(x) =

b) the variance
=
Std dev = square root of variance = 2.4897
The answer is 5.14 ur well come (instagram:2k15sgraduate_bish_where)
Answer:
A. Statistic
Step-by-step explanation:
Usually whole population is difficult to cover so the part of population is considered to assess the aspects of population. The statistic is the quantity which summarizes the sample. The problem illustrate that summary measure is calculated from sample to describe a population. As the summary measure is computed from sample then it is a statistic.
2x+y=1
-2x -2x
————
[y=-2x+1]
-4+1(-2x+1)=-1
4-2x+1=-1
-1 -1
———————
3-2x=-1
-3 -3
———————
-2x=-4
—— —
-2 -2
[X=2]
2(2)+y=1
4+y=1
-4 -4
————
[y=-3]
x y
Answer: (2,-3)