Statistics, Data Analysis, and Probability

Transcription

1 Statistics, Data nalysis, and Probability 57. bag contained four green balls, three red balls, and two purple balls. Jason removed one purple ball from the bag and did NOT put the ball back in the bag. He then randomly removed another ball from the bag. What is the probability that the second ball Jason removed was purple? D 9 9 M nna has the letter tiles below in a bag. 0% 0% F D 5% 0% 5% 59. The circle graph shown above represents the distribution of the grades of 0 students in a certain geometry class. How many students received s or s? 0 5 D 0 M0000 S T T I S T I S She reached in the bag and pulled out an S. She then put the tile back in the bag. If nna randomly selects a tile from the bag, what is the probability she will select an S again? D M5 based on performance on released test questions. opyright 00 by the alifornia Department of Education.

2 Statistics, Data nalysis, and Probability 7 Speed of Four Runners. The graph below represents the closing in a 00-Meter Dash price of a share of a certain stock for each day of a week. Speed (meters per second) 5 Value in Dollars st place nd place rd place Runners th place 0. ased on the bar graph shown above, which of the following conclusions is true? Everyone ran faster than meters per second. The best possible rate for the 00-meter dash is 5 meters per second. The first-place runner was four times as fast as the fourth-place runner. D The second-place and third-place runners were closest in time to one another Monday Tuesday Wednesday Thursday Friday Which day had the greatest increase in the value of this stock over that of the previous day? Tuesday Wednesday Thursday D Friday M0095 M based on performance on released test questions. opyright 00 by the alifornia Department of Education.

3 lgebra and Functions. xy = 9xy ( ) xy xy D xxxyyy. What does x 5 equal when x =? M Simplify the expression shown below. ab c( 7abc) a b c a 5 b c a b c D a 5 b c ( ). Which expression is equivalent to 7ab i7bc? M009 0 D a b c 9a bc 9a b c D a b c M7 M57. Which of the following is equivalent to ( x ) ( x )( x + )? ( x ) ( x + ) ( x ( ) x + ) D ( x ) ( x + ) 7. Which expression is equal to 0a 50a 0a D 50a 00a? M0 M5. x = x x D x M007 based on performance on released test questions. opyright 00 by the alifornia Department of Education.

4 lgebra and Functions. Which of the following is the graph of y= x? y y _ 0 x 0 x _ y D y _ 0 x 0 x _ M00 based on performance on released test questions. opyright 00 by the alifornia Department of Education.

5 Measurement and Geometry. One-inch cubes are stacked as shown in the drawing below. 0. What is the area of the shaded region in the figure shown below? cm in. { { { in. in. cm cm cm What is the total surface area? 9 in. 9 in. in. D in. cm cm cm D cm M0 M right triangle is removed from a rectangle as shown in the figure below. Find the area of the remaining part of the rectangle. in. in. 9. In the figure shown above, all the corners form right angles. What is the area of the figure in square units? D 9 M00 in. in. in. 0 in. in. in. D 5 in. M009 9 based on performance on released test questions. opyright 00 by the alifornia Department of Education.

6 Measurement and Geometry. In the figure below, every angle is a right angle.. What is the area of the shaded figure below? What is the area, in square units, of the figure? D M0790 = square centimeter (cm ) cm 9 cm 0 cm D cm M7 50 based on performance on released test questions. opyright 00 by the alifornia Department of Education.

7 Mathematical Reasoning 70. The graph below shows the amount of money in one of Marie s savings accounts over several years. vings Sa $700 $00 $500 $00 $00 $00 $00 $000 (, $00) (0, $000) (, $05) 0 Year (, $) (, $5) If Marie s savings continue to grow at the same rate as shown in the graph, how much money will she have saved by year 5 in this account? $5 $55 $ D $5 7. The table below shows values for x and corresponding values for y. x y 7 Which of the following represents the relationship between x and y? y = x 7 y = 7x y D y = x = x M0077 M9 based on performance on released test questions. opyright 00 by the alifornia Department of Education.

8 Mathematical Reasoning 7. Michelle read a book review and predicted that the number of girls who will like the book will be more than twice the number of boys who will like the book. Which table shows data that support her prediction? Number Who Liked the ook oys 5 Girls 0 Number Who Liked the ook oys 70 Girls 5 Number Who Liked the ook oys 5 Girls 0 D Number Who Liked the ook oys 0 Girls 0 M 9 based on performance on released test questions. opyright 00 by the alifornia Department of Education.

9 lgebra I 97. What is the y-intercept of the line represented by the equation x + y =? D M9 9. Which of the following points lies on the line y = x? (, ) (, ) (, ) D (, 0) 00. Which equation represents the line on the graph below? y x+ y= x+ y= 5 x+ y= 9 D x+ y= x M059 M Which of the following points lies on the line x + 5y = 0? (, 0) (, 05) ( 5), D (, 5) M based on performance on released test questions. opyright 00 by the alifornia Department of Education.

10 lgebra I 0. What is the slope of a line parallel to the line y = x +? 0. Which of the following statements describes parallel lines? Same y-intercept but different slopes Same slope but different y-intercepts Opposite slopes but same x-intercepts D Opposite x-intercepts but same y-intercept D 0. Which of the following could be the equation of a line parallel to the line y = x 7? M00 M05 y = x 7 y = x + y = x + D y = x 7 M05 0 based on performance on released test questions. opyright 00 by the alifornia Department of Education.