It is 28 because you have to take the median out then go to the first set of data and find the median of that.
First you divide $4000 by 160 to see how much each book costs. Then you multiply 2 times the cost for each book and subtract that from $4000.
$4000/160= $25
$25=1 book
So if the store gives away 2 books that's $50 dollars. $4000-$50 equals 3,950
Answer:
negative
Step-by-step explanation:
Answer:
B. Median is greater than the mean and the majority of data points are to the right of the mean.
Step-by-step explanation:
Mean = sum(x × p(x))
= (1×0.1)+(2×0.15)+(3×0.2)+(4×0.45)+(5×0.1)
= 3.3
Probability of more than 3.3 is:
0.45 + 0.1 = 0.55 > 0.5
Answer:
Final answer is 
which is the last choice.
Step-by-step explanation:
In triangle ABC, we have been given a = 15, b = 11, and angle C is a right angle.
Now using those values, we need to find the exact value of cos B.
Apply Pythagorean formula:
Now apply formula of cos
Hence final answer is
