Gabrielle surveyed a random sample of 40 students in her school's cafeteria about whether they ate the cafeteria's tomato soup.

- 14 of the sample students said they did

- a total of 840 eat in the cafeteria everyday

Part A

based on the results of gabrielles survey, how many of the 840 students can be expected to eat the tomato soup?

Part B

isaiah and kaylee also surveyed random samples of 40 students about the tomato soup.

gabrielle - 14 of them did

isaiah - 10 of them did

kaylee - 11 of them did

based on the results of the three surveys what percentage of the 840 students can be expected to eat the tomato soup?

Question

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Mathematics

6 September, 21:24

Gabrielle surveyed a random sample of 40 students in her school's cafeteria about whether they ate the cafeteria's tomato soup.

- 14 of the sample students said they did

- a total of 840 eat in the cafeteria everyday

Part A

based on the results of gabrielles survey, how many of the 840 students can be expected to eat the tomato soup?

Part B

isaiah and kaylee also surveyed random samples of 40 students about the tomato soup.

gabrielle - 14 of them did

isaiah - 10 of them did

kaylee - 11 of them did

based on the results of the three surveys what percentage of the 840 students can be expected to eat the tomato soup?

+2

Answers (1)

Know the Answer?

Isaiah Berger · Answer 1

Part A:

14/40=x/840

14*840=40x

11760=40x

294=x

x=294

194 are expected to eat the tomato soup

Part B:

find the average of 10,11, and 14

35/3=11.67

11.67/40=x/840

40x=11.67*840

9802.8=40x

x=245.07

245.07/840

0.29175*100 = 29.175

29.175%