Test 7 Unit 9 Flashcards Preview

7th math > Test 7 Unit 9 > Flashcards

Flashcards in Test 7 Unit 9 Deck (27):
1

Based on 400 people in the survey, find 16%

400 x .16 = 64

2

Based on 400 people in the survey, find 23%

400 x .23 = 92

3

Based on 400 people in the survey, find 9%

400 x .09 = 36

4

Based on 400 people in the survey, find 34%

400 x .34 = 136

5

Based on 400 people in the survey, find 18%

400 x .18 = 72

6

Find the Pct to the nearest thousandth.
Games won -- 15; Games played -- 25

15 divided by 25 = .600

7

Find the Pct to the nearest thousandth.
Games won -- 10; Games lost -- 15

total games 25. 10 divided by 25 = .400

8

Find the Pct to the nearest thousandth.
Games won -- 18; Games lost -- 18

total games 36. 18 divided by 36 = .500

9

Find the mean. 14;25;18;14;9

16

10

Find the mean. 9;11;8;7;10

9

11

Find the median. 93;17;85;42;15;19;78

15;17;19;42;78;85;93 odd number 42 in middle
42

12

Find the median. 11;15;9;7;7;12

7;7;9;11;12;15 even number avg. middle two 9&11. Median is 10

13

Find the mode of 9;12;7;9;3;8

9

14

Find the mode of 97;86;85;93;86;88;91

86

15

a round graph

circle graph (or pie)

16

a vertical bar graph that deals with frequencies

histogram

17

a graph with pictures

pictograph

18

a graph with bars

bar or column graph

19

a graph with lines

line graph

20

Dustin had these grades on his last report slip: 93; 97; 85; 74; and 91. Rank the grades from least to greatest.

74; 85; 91; 93; 97

21

For the past five days, the Criswell family has traveled these miles: 389; 126; 419; 93; and 394. Find the range.

326 mi.

22

If 1/4 inch represents 50 miles, how many inches are needed to represent 225 miles?

225 divided by 50 = 4.5
4.5 x 1/4 =
4.5 x .25 = 1.125 = 1 1/8 inch

23

Miss Taylor graded 50 English research papers. 12 of them received a grade of A. Miss Taylor drew a circle graph to display the grades. What percent of the circle graph was devoted to the A papers?

12 divided by 50 = .24 or 24%

24

A histogram showed that 8 students made between 60 & 70, 7 made between 70 & 80, 11 made between 80 & 90, and 9 made between 90 & 100. How many students took the test?

35 students

25

Delbert's Deli sold the following sandwiches last week: 145 tuna, 289 turkey, 167 ham, 315 club, and 244 subs. Find the mean number sold.

232

26

The prices of the sandwiches are as follows: tuna - $4.69; turkey - $3.89, ham - $3.49, club - $4.89, and sub - $4.25. Find the median price.

$4.25

27

six boys had these times for the 100 meter dash - 12 sec, 14 sec, 13 sec, 13.5 sec, 12 sec, 14.5 sec. Find the mode.

12 sec