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7th math > Test 7 Unit 9 > Flashcards

Test 7 Unit 9 Flashcards

1
Q

Based on 400 people in the survey, find 16%

A

400 x .16 = 64

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2
Q

Based on 400 people in the survey, find 23%

A

400 x .23 = 92

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3
Q

Based on 400 people in the survey, find 9%

A

400 x .09 = 36

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4
Q

Based on 400 people in the survey, find 34%

A

400 x .34 = 136

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5
Q

Based on 400 people in the survey, find 18%

A

400 x .18 = 72

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6
Q

Find the Pct to the nearest thousandth.

Games won – 15; Games played – 25

A

15 divided by 25 = .600

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7
Q

Find the Pct to the nearest thousandth.

Games won – 10; Games lost – 15

A

total games 25. 10 divided by 25 = .400

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8
Q

Find the Pct to the nearest thousandth.

Games won – 18; Games lost – 18

A

total games 36. 18 divided by 36 = .500

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9
Q

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

A

16

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10
Q

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

A

9

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11
Q

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

A

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

42

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12
Q

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

A

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

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13
Q

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

A

9

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14
Q

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

A

86

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15
Q

a round graph

A

circle graph (or pie)

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16
Q

a vertical bar graph that deals with frequencies

A

histogram

17
Q

a graph with pictures

A

pictograph

18
Q

a graph with bars

A

bar or column graph

19
Q

a graph with lines

A

line graph

20
Q

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

A

74; 85; 91; 93; 97

21
Q

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

A

326 mi.

22
Q

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

A

225 divided by 50 = 4.5

  1. 5 x 1/4 =
  2. 5 x .25 = 1.125 = 1 1/8 inch
23
Q

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?

A

12 divided by 50 = .24 or 24%

24
Q

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?

A

35 students

25
Q

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.

A

232

26
Q

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.

A

$4.25

27
Q

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.

A

12 sec

7th math (43 decks)

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