B) 5 C) 20 D)7 A WLAC fitness instructor measured the heart rates of the partici
ID: 3323958 • Letter: B
Question
B) 5 C) 20 D)7 A WLAC fitness instructor measured the heart rates of the participants in a yoga class at the conclusion of the class. Th data is summarized in the histogram below. There were fifteen people who participated in the class between the ages 20 and 45. Use the histogram to answer the question. Beats per minute (bpm) 2) 2) How many participants had a heart rate between 120 and 130 bpm? 3) How many participants had a heart rate between 140 and 150 bpm? 4) What percentage of the participants had a heart rate greater than 130 bpm2 A) 5 B) 2 C) 4 D)3 3) B) 4 C) 5 D)3 A) 2 4) A) 53% B) 33% C) 13% 5) 5) What is the approximate percentage of participants that had a heart rate less than 130 bpm? D) 13% B) 53% C) 33% A) 47%Explanation / Answer
#2. The bar of class 120-130 represents frequency of 3. Hence option D
#3. The bar of class 140-150 represents frequency of 2. Hence option A
#4.
Total participants 15.
Bars beyond 130 represents 5 + 2 + 1 = 8 participants
8/15 = 53% hence option A
#5.
1 - 53% = 47%
option A
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