Graph It Right!
Brian wants to display the median, range, and interquartile range (IQR) from a study he conducted. Which graph would be most appropiate?
A. Box and Whisker Plot
B. Bar Graph
C. Stem and Leaf
D. Dot Plot
A. Box and Whisker
The appropriate measure of center when the data is unevenly distributed and has an outlier.
What is median?
A box contains 8 index cards with the following numbers: 4, 5, 5, 6, 6, 7, 7, and 7. Which of the following statements are true about the probabilities of drawing each number? (multiple answers are correct)
A. The probability of drawing an 8 is 1
B. The probability of drawing a 3 is 0
C. The probability of drawing a number 6 or greater is greater than the probability of drawing a number less than 6.
D. The probability of drawing a 4 or 7 is 1/2.
E. The least likely number to draw is 5.
What is B, C, and D.
What is the probability of picking a vowel from the word "MATH" ? Write your answer as a fraction AND decimal.
1/4 or 0.25
In a random sample of 1,000 locals from Port St. Lucie, 280 locals indicated interest in a new restaurant. Based on these results, how many total number of locals out of 5,000 can be expected to be interested in the new restaurant?
1,400 locals
What type of graph is best for showing parts of a whole?
Circle Graph (pie chart)
What are the two measures of variability and when should you use them? (Think: even or uneven)
1. Range - even data
2. IQR - uneven data
Santiago draws a number from a hat with numbers 1-10. He draws a number then puts it back and shuffles the numbers. He does this 400 times. The number 8 was drawn a total of 37 times. What is the theoretical probability and experimental probability of drawing an 8? Write your answers as decimals (do not round).
Theoretical: 0.1 or 10%
Experimental: 0.0925 or 9.25%
If you spin a spinner divided into 8 equal sections numbered 1-8, what is the probability of landing on an even number? Express your answer as a simplified fraction. Is this likely to occur or unlikely?
4/8 = 1/2 ; likely
In a random sample of 1,000 locals from Port St. Lucie, 280 locals indicated interest in a new restaurant. Based on these results, how many total number of locals out 7,500 can be expected to be interested in the new restaurant?
2,100 locals
A dot plot shows the points bunched to the left side of the graph, with a single dot all the way to the right of the graph. This is considered to be ____ distributed data.
A. Evenly
B. Unevenly
Unevenly
The middle number of an ordered data set is called the what?
Median
What is the probability of landing on a section with a number on a spinner with a sample space of, S= (1, 2, 3, A, B, C, D, E)? Express your probability as a decimal to the thousandths place (you should have three numbers behind your decimal)
0.375
Thirty students are randomly assigned to different activities. There is an 8/30 chance of being assigned Activity X, a 6/30 chance of being assigned Activity Y, and a 16/30 chance of being assigned Activity Z. Which event is most likely to occur?
A. Assigned Activity W; the probability is 0.
B. Assigned Activity Y; the probability is the least.
C. Assigned Activity Z; the probability is greater than 1/2.
D. Assigned Activity X; the probability is greater than 1/4.
C. Assigned Activity Z; the probability is greater than 1/2.
Hailey has a total of 10 cards from a standard deck of cards: 2 Kings, 3 fives, 1 Queen, 1 Jack, and 3 nines. What is the sample space for the cards that Hailey has?
A. S = (K, K, K, 5, Q, Q, J, 9, 9, 9)
B. S= (K, 5, Q, J, 9)
C. S= (K, K, 5, 5, 5, Q, J, 9, 9, 9)
D. (K, K, K, 5, 5, Q, J, 9, 9, 9, 9)
C. S= (K, K, 5, 5, 5, Q, J, 9, 9, 9)
When working with numerical data, which type of graph would you typically NOT use?
A. Stem and Leaf
B. Circle Graph
C. Box and Whisker (box plot)
D. Dot plot (line plot)
B. Circle graph
What is the mean of the numbers: 5, 10, 15, and 20?
12.5
What is the probability of landing on a section with a letter on a spinner with a sample space of, S= (1, 2, 3, A, B, C, D, E)? Express your probability as a decimal to the thousandths place (you should have three numbers behind your decimal)
0.625
A game claims you have a 1 in 5 chance of winning. What is the probability as a percentage? Is this likely or unlikely?
20%; unlikely
A company surveys 200 people, and 60 of them prefer their new product. What percentage is this?
30%
A circle graph represents the different activities that 200 campers participate in on a given day. Swimming: 35%, Hiking: 25%, Kayaking: 20%, Archery: 20%
Which of the following statements are true? (Multiple answers are correct)
A) 10 more campers are swimming than hiking.
B) More campers are kayaking than doing archery.
C) 120 campers are either swimming or hiking.
D) 40 campers are doing archery.
C) 120 campers are either swimming or hiking.
D) 40 campers are doing archery.
Find the IQR of the given data set: 4, 7, 10, 15, 18, 22, 25, 30, 34, 38
IQR = 20
Jordan generates 500 outcomes using a random number generator. Each outcome is a digit from 1 to 10. Which statement best describes the frequency of the digit 7 among these outcomes?
A. The digit 7 will appear exactly 50 times.
B. The digit 7 will appear exactly 100 times.
C. The digit 7 will appear about 100 times but probably not exactly 50 times.
D. The digit 7 will appear about 50 times but probably not exactly 50 times.
D. The digit 7 will appear about 50 times but probably not exactly 50 times.
If a fair coin is flipped 100 times, how many times would you expect it to land on heads?
50 times
A basketball player makes 40 out of 50 free throws. Based on this, what is the probability they make their next free throw? Write your answer as a simplified fraction AND percentage.
4/5 = 80%