Answer:
And replacing we got:
So we are going to expect about 2,85 automobiles for this case.
Step-by-step explanation:
For this case we define the random variable X as "number of automobiles lined up at a Lakeside Olds dealer at opening time (7:30 a.m.)" and we know the distribution for X is given by:
X 1 2 3 4
P(X) 0.05 0.30 0.40 0.25
The expected value of a random variable X is the n-th moment about zero of a probability density function f(x) if X is continuous, or the weighted average for a discrete probability distribution, if X is discrete
For this case we can calculate the epected value with this formula:
And replacing we got:
So we are going to expect about 2,85 automobiles for this case.
It is stated that their are closed circles on -4 and 3. This means, both -4 and 3 are also included in the interval.
The following regions are included in the range:
a) -4
b) Numbers between -4 and 3
c) 3
d) Numbers greater than 3
So, the number line represents:
x greater than or equal to -4 and x less than or greater to 3.
Therefore, the first option gives the correct combined inequality.
Answer:
1) 1 hour
Step-by-step explanation:
Marginal cost is the total cost of making the product.
Here, the Total number of hour Matias need to move from grade B to grade A is:
Time spent to get grade A - Time spend to get grade B
= 2 hours - 1 hours = 1 hours
Thus, Matias ’s marginal cost in terms of TV viewing to moving from a B to an A on the exam is 1 hour.
Could you please post the question idk if you see the person who commented above so i typed here but i will try to answer the questions when you post them!
