75% of the total number of first-year optometry students from DDC, 25% were males and 50% were females, have bad eye vision due to their reading habits and got poor academic performance but a satisfying performance in non-academic activities. The researcher got a 30% sample out of the 100% population and found out that 20% of the sample were females and 10% were males with bad eye vision due to their reading habits and got poor academic performance but satisfying non-academic performance.  Questions:  If the total population of first-year optometry students from DDC is 65, how many students from the population have bad eye vision due to reading habits? How many females and males of the total population have poor performance in academic activities? List down 4 possible variables that the researcher identified for his study.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.6: Summarizing Categorical Data
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75% of the total number of first-year optometry students from DDC, 25% were males and 50% were females, have bad eye vision due to their reading habits and got poor academic performance but a satisfying performance in non-academic activities.

The researcher got a 30% sample out of the 100% population and found out that 20% of the sample were females and 10% were males with bad eye vision due to their reading habits and got poor academic performance but satisfying non-academic performance. 

Questions: 

  1. If the total population of first-year optometry students from DDC is 65, how many students from the population have bad eye vision due to reading habits?
  2. How many females and males of the total population have poor performance in academic activities?
  3. List down 4 possible variables that the researcher identified for his study.

PLEASE ANSWER ASAP, BADLY NEEDED THANKS! 

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