Answer:
y=-(4x/3) -1
Step-by-step explanation:
Slope=m= -4/3
y intercept = c = -1
now using equation;
y= mx+c
y= (-4/3)x+(-1)
y=-(4x/3) -1
Answerd:
Step-by-step explanation:
Answer:
3 unit is the correct answer
Answer:
a)
And replacing we got:
b)
Step-by-step explanation:
Previous concepts
In statistics and probability analysis, the expected value "is calculated by multiplying each of the possible outcomes by the likelihood each outcome will occur and then summing all of those values".
The variance of a random variable Var(X) is the expected value of the squared deviation from the mean of X, E(X).
And the standard deviation of a random variable X is just the square root of the variance.
Solution to the problem
Part a
We have the following distribution function:
Y 0 1 2 3
P(Y) 0.45 0.2 0.3 0.05
And we can calculate the expected value with the following formula:
And replacing we got:
Part b
For this case the new expected value would be given by:
And replacing we got
read the following
<em><u>All parallel sides are equal</u></em>
Parallelogram A:
Breadth=6+3=9cm
height=6cm
Area:L X B
Area=54cm²
Parallelogram B:
Beeadth=8+2=10cm
height=5cm
Area=L X B
Area=50cm²
Parallelogram C:
Breadth=7+5=12cm
height=8cm
Area=L X B
Area=96cm²
Parallelogram D:
Breadth=14cm
height=7cm
Area=L X B
Area=98cm²
Hope your dad doesnt kill you :)