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One-Variable Data: Distributions and Measures of Center and Spread

SAT Math· difficulty 3/5

A histogram of test scores has bins: 50-59 (3), 60-69 (8), 70-79 (15), 80-89 (12), 90-99 (4). How many students scored less than 70?

  • A

    11

    check_circle
  • B

    8

  • C

    23

  • D

    15

Explanation

50 to 59:350 \text{ to } 59: 3 + 60 to 69:8=1160 \text{ to } 69: 8 = 11 students.

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