High School

We appreciate your visit to The local amusement park was interested in the average wait time at their most popular roller coaster at the peak park time 2 p m. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

The local amusement park was interested in the average wait time at their most popular roller coaster at the peak park time (2 p.m.). They selected 13 patrons and had them get in line between 2 and 3 p.m. Each was given a stopwatch to record the time they spent in line. The times recorded were as follows (in minutes): 118, 124, 108, 116, 99, 120, 148, 118, 119, 121, 45, 130, 118.

What is the first quartile?

a. 100.8
b. 119.8
c. 128.8
d. 112
e. 122.5

Answer :

Answer: d. 112

Step-by-step explanation:

First Quartile is the median of the first half of ordered data (from smallest to largest).

The given data : 118, 124, 108, 116, 99, 120, 148, 118, 119, 121, 45, 130, 118.

Arrange in Ascending order , we get

45,99, 108,116,118, 118, 118, 119,120, 121,124,130, 148

First half = 45,99, 108,116,118, 118

No. of elements = 6

First Quartile = Median of first half = Mean of middlemost terms

=[tex]\dfrac{108+116}{2}=\dfrac{224}{2}=112[/tex]

Hence, the First quartile = 112

Correct answer = d. 112

Thanks for taking the time to read The local amusement park was interested in the average wait time at their most popular roller coaster at the peak park time 2 p m. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada