7.8. Histograms http://www.ck12.org
Answer:
a.
b. i. 11+ 9 + 12 + 14 + 7 + 10 + 12 = 75
In this small town, 75 teachers are teaching.
ii. 11 teachers have taught for less than 5 years.
iii. 12 teachers are eligible to retire.
iv.^1775 = 0. 2266 ( 0. 2266 )(100%)≈23%
Approximately 23% of the teachers must teach for 10 years or fewer before they are eligible to retire.
v. Answers will vary, but one possible answer is that the majority of the teachers are young, because 46 have taught
for less than 20 years.
Practice
- What name is given to a distribution that has 2 peaks of the same height?
a. uniform
b. unimodal
c. bimodal
d. discreteThe following histogram shows data collected during a recent fishing derby. The number of fish caught is being
compared to the size of the fish caught. Use the histogram to answer the following questions: