Answer:
The expected number of siblings is 1.05 or 1 (when rounded)
Step-by-step explanation:
Given the probability distribution of siblings of students in a high school with 1500 students:
To find the expected value for the number of siblings of a randomly chosen student, myltiply the number of siblings by its probability and add all these products:
Thus, the expected number of siblings is 1.05 or 1 (when rounded)
Answer:
A. X < 3
Step-by-step explanation:
Let x represent the average number of shots Kaydence can take on each hole in order to beat Delilah's score.
Delilah final score is 42 while Kaydence has 5 holes left and has a score of 27. Hence:
number of holes left for Kaydence * x < Delilah final score - Kaydence present score
That is:
5*x < 42 - 27
Simplifying gives:
5x < 15
Dividing both sides by 5 to make x the subject of the inequality:
5x / 5 < 15 / 5
x < 3
256.44 (a day I believe is correct)
The markup is $38.80.
What I did:
markup rate=40%
40%=0.4
0.4*97=38.80.