# Ninth Grade (Grade 9) Statistics and Probability Concepts Questions

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 Grade 9 :: Represent and Determine Probability by SheilaH
 Grade 9 :: Represent and Determine Probability by LBeth
 Rayne's school offers:Drum, flute, and piano lessons;A play and a musical each year;Chess club, science club, and art club.This year Rayne wishes to take lessons for 1 instrument, participate in either the play or musical, and join 1 club. How many different combinations of activities can she choose from? 8 9 12 18
 Grade 9 :: Represent and Determine Probability by LBeth
 At the movie theater, Dave can pick from 7 movies and 16 snack options. If Dave chooses to watch 1 movie and buy 1 snack, how many combinations are there? 2 23 56 112
 Grade 9 :: Represent and Determine Probability by LBeth
 Stonecroft High School offers 5 fall sports, 4 winter sports, and 6 spring sports for students to pick from. Grace plans on participating in 1 sport each season. How many different combinations of sports teams can she pick from? 15 24 120 720
 Grade 9 :: Represent and Determine Probability by Andrew
 A class has 11 boys and 9 girls. Two of the students will be selected at random to serve on a committee. What is the probability that both of the selected students will be girls? $72/400$ $18/95$ $81/380$ $81/121$
 Grade 9 :: Statistics and Probability Concepts by Barraza
 $6! + 3!$ 726
 Grade 9 :: Statistics and Probability Concepts by Barraza
 $(9!)/(6!3!)$ 84
 Grade 9 :: Represent and Determine Probability by cbradford1018
 If a number cube labeled 1-6 is rolled, what is the probability that the roll will produce a number less than 3? $1/6$ $1/3$ $1/2$ $2/3$
 Grade 9 :: Represent and Determine Probability by LBeth
 During summer vacation, Carlos has the option of attending summer camp for a week, working at a grocery store, volunteering in his community, and taking driver's education. If Carlos can decided to do all, some, or none of these activities over his summer vacation, how many different combinations are there from which can he select? 14 16 20 24
 Grade 9 :: Represent and Determine Probability by LBeth
 Lilia registers to take 7 classes freshman year. Each class is available during each of the 7 periods of the school day. How many different ways can Lilia's classes be arranged? 5,040
 Grade 9 :: Statistics and Probability Concepts by Barraza
 $(10!)/(6!5!)$ 42
 Grade 9 :: Statistics and Probability Concepts by Barraza
 $(9!)/(4!2!)$ 7560
 Grade 9 :: Statistics and Probability Concepts by Barraza
 $(8!)/(5!)$ 336
 Grade 9 :: Range Median Mean Mode by Chakia
 Lisa has scores 85, 93, and 89 on her first three tests in Algebra. What possible scores on the fourth test will enable her to achieve an average of 90 or more on the four tests? $x >= 93$
 Grade 9 :: Represent and Determine Probability by LBeth
 Grade 9 :: Statistics and Probability Concepts by cbradford1018
 Identify each set of events as independent or dependent.a. tossing two coins, a dime and quarterb. tossing the same coin twicec. putting 10 students' names in a bag and drawing two names without replacementd. putting 10 students' names in a bag and drawing one per week to choose a room monitor. A student can be chosen more than once. a. independentb. independentc. dependentd. independent
 Grade 9 :: Line Graphs by havera
 The vertical axis is the scale along the bottom of a graph. True False
 Grade 9 :: Represent and Determine Probability by cbradford1018
 Joe has 10 equally sized slips of paper. He writes a number on each, so that the slips of paper are labeled 0 through 9. He places all 10 slips in a hat.a. What is the sample space when randomly choosing a slip of paper?b. What is the probability of randomly drawing a number greater than 5?c. Joe is trying to draw a number greater than 5. He draws a 2 and puts it back into the hat. He then draws a 4 and puts it back in the hat. What is the probability that he draws a number greater than 6 on his next try? Why?d. Is there a greater chance of drawing an even number or drawing a number less than 8? Justify your answer. a. {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,}b. 4/10=2/5c. 2/5 The third event is independent of the first 2d. number less than 8=8/10. even number=4/10
 Grade 9 :: Represent and Determine Probability by LBeth

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 $3! -:0!$ 6
 Grade 9 :: Represent and Determine Probability by LBeth
 A physics classroom has 10 desks. If there are 6 students in AP Physics class, how many different ways can the students choose desks? 151,200
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