Question

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There are 400 7th graders at your school. You sampled 35 of them and found that 14 students are in advanced math. How many 7th graders can you expect to be in advanced math at your school?

Answer 1

Answer:

160

Step-by-step explanation:

P(advance math | 7th grader) = 14/35 (sample size 35)

Estimated advance math 7th grader in school = 400 * 14/35

= 160

Answer 2

Answer: 160 people can be expected to be in advanced math

Step-by-step explanation:

14 ÷ 35 = 0.4

⇒ what is 40% of 400?

⇒ 0.4 × 400

⇒ 160 people