Topic 7
Luke rolls a 10-sided solid with equal-sized faces labeled 1 to 10. What is the probability of rolling a 4.
1 out of 10, or 1/10
It is unikely to occur.
If it is equally likely that a soccer team wins or loses any game, what is the probability that the team will win its next two games? Make a tree diagram to list the outcomes.
W L
W L W L
only 1 of the 4 outcomes shows the team winning each of its next two games.
P(winning the next two games) = 1/4 = 25%
a blueprint of a room is drawn to a scale of 2 inches = 7 feet. The actual length of one wall is 56 feet. What is the length of this wall on the blueprint?
16 inches
The diameter of the logo at the center of a basketball court is 10 feet. What is the aera of the logo?
about 78.5 square feet
The numbers from 1 to 5 are written on slips of paper and placed in a bucket. What is the theoretical probability of drawing a 2?
P(2) = number of slips labeled 2
Number of possible outcomes = 1/5
Mr. Jones assigns homework 60% of the days that school is in session. His students use a random number generator to simulate five trials representing Mr. Jones homework assignments next week. The numbers 0 to 5 represent days which homework is assigned, and the numbers 6 to 9 represent days without homework. What is the probability that Mr. Jones will asign homework on 3 or more days next week?
80%
What is the name of a quadrilateral with exactly two perpendicular sides and one angle measuring 120 degrees.
trapezoid
Muffins are packed in two layers in a box with a piece of cardboard placed between. What shape is the cardboard and what are it's dimensions?
it is shaped like a rectangle that is 15 inches long and 10 inches wide.
Four people conduct an experiment to find how often a flipped coin lands heads up. The results are shown in the table below.
name total flips heads
Ashley 55 26
Brent 70 38
Carey 50 22
David 80 41
total 255
Based on the results from each persons coin flips, find the experimental probability of a flipped coin landing heads up.
How does the experimental probability compare to the theoretical probability of a flipped coin landing up.
The flipped coin landed heads up in 177 of its 255 trials. The experimental probability is about 49.8%
The experimental probability, 49.8%, is very close to the theoretical probability of 50%
How many triangles can be drawn with side lengths of 3 inches 5 inches and 6 inches.
there is only one way to draw a triangle with these side lengths.
34.5 ft2
Jenna spins the pointer on her spinner 20 times. Develop a probability model for the situation. What is the sum of the probabilities in the probability model?
1
List 2 pairs of vertical lines
szr and xyz
szx and ryz
what is the volume of the box?
1,458 in3
The student shop sells red and black bags printed with the school logo. Students can choose a backpack, duffel bag, or cinch sack of either color. Make a tree diagram to show all the styles of bags sold at the shop.
backpack
red duffel bag
cinch sack
backpack
black duffel bag
cinch sack
the shop sells 6 different styles of bags.
What is the circumstance of a circle with a radius of 6 meters?
37.68 meters