English Language Arts
Grade 12
45 min
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1
A student's average on 4 tests is 90. They score 70 on the fifth test. What is the revised average?
2
In a group of 20 people, 70% prefer coffee. In a second group of 30, 40% prefer coffee. What is the combined percentage?
3
A survey at a tech conference finds 95% of attendees own the latest smartphone. Why should we be cautious about this claim?
Sample Practice Questions
Easy
A bowler's average score over 3 games is 150. Their fourth game is 170. What is their new average score?
0.150
1.155
2.160
3.165
Easy
In Class A, 10 of 20 students (50%) have a pet. In Class B, 15 of 30 students (50%) have a pet. What is the combined percentage?
0.45%
1.50%
2.55%
3.60%
Easy
To find out the most popular book genre, a librarian only surveys people in the fantasy section. What is the issue?
0.Small sample
1.Biased sample
2.No issue
3.Wrong question
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