Mathematics, 12.01.2021 17:40 victory08
Home Alone is a series of American Christmas family comedy films created by John Hughes. There are 5 Home Alone movies. Below is a probability distribution of the number of Home Alone movies watched by a very large sample of high school students. 0 1 2 3 4 5 Number of Home Alone Movies Watched Probability 0.15 0.42 0.32 ? 0.02 0.01
a. Write the event "the student has seen 3 Home Alone movies" using probability notation. Then find this probability.
b. Explain in words what P(X > 3) means. What is this probability?
c. Make a histogram of the probability distribution. Describe its shape.
d. Calculate and interpret the expected value of X.
Answers: 2
Mathematics, 22.06.2019 00:50
Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters
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Mathematics, 22.06.2019 00:50
Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?
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