## (CORRECT ANSWER) MATH225N Week 3 Assignment : Measures of Central Tendency

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## Description

**1.Question**

Given the following list of minutes randomly selected customers waited in line to buy tickets for a play, find the median.

17,11,34,22,4,9,12,31,21,15

**2.Question**

Given the following list of data, find the median.

1,3,1,23,2,4,22,13,26,8

**3.Question**

Find the median of the following set of data.

32,19,21,16,27,15

**4.Question**

Find the median of the following list of dollars spent per customer at a deli in the last hour.

21,7,13,8,16,30,10

**5.Question**

A teacher randomly selects 10 out of her 30 students and finds that the mean height of those 10 students is 5′2″. Is this a sample mean or a population mean, and which symbol would be used to denote it?

Select the correct answer below:

Population Mean μ

Sample Mean x¯¯¯

** ****6.Question**

Find the mode of the following hourly wages (in dollars) of randomly selected employees at an accounting office.

15,15,18,15,11,18,7,17,17,7

Answer:

**7.Question**

Find the mode of the following number of countries randomly selected travelers visited in the past two years.

13,13,15,7,8,4,4,7,13

Answer:

**8.Question**

Find the mode of the following number of pastries eaten by each guest during a tea party.

2,15,19,5,9,9,9,2,9

Ans.

**9.Question**

Given the following list of tips (in dollars) earned in the last hour by waiters in a Japanese restaurant, find the median.

30,17,47,47,26,17,36,31,21,17

Answer.

**10.Question**

Find the median of the following set of data.

7,26,7,9,11,4,15,22

Answer:

**11.Question**

Find the median of the following set of data.

36,22,24,30,44,13,21,34,18

Select the correct answer below:

Answer:

**12.Question**

Find the mode of the following list of points earned on a 16 point quiz given during a finance class.

7,7,3,2,7,16,12,16,12

Answer:

**13.Question**

Find the mode of the following number of times each machine in a car factory needed to be fixed within the last year.

2,5,6,12,14,12,6,2,5,3,14,5

Answer:

**14.Question**

Find the median of the following set of miles per gallon for randomly selected sports cars.

36,22,24,30,44,13,21,34,18

Answer:

**15.Question**

Jon loves to go bird watching at a nearby animal sanctuary. Find the mean of the following numbers of birds he spotted at the sanctuary in the last few days.

14,10,17,11,9,15,6,14

Answer:

**16.Question**

An art collector bought 20 paintings at an art fair, and wants to know the average price of the paintings she purchased at the fair. She adds the prices of all the paintings and divides this number by 20 to find an average price of $350. Is this price a sample mean or a population mean, and which symbol would be used to denote it?

Select the correct answer below:

Population Mean μ

Sample Mean x¯¯¯

**17.Question**

A grandfather wants to know the average height of all his grandchildren. He finds that the heights of his 9 grandchildren are given in inches by

63,71,60,59,74,60,60,75,58.

What is the population mean of the height of his grandchildren in inches? Round your answer to the nearest tenth of an inch and do not include units.

Provide your answer below:

Ans.

**18.Question**

A track and field coach wants to study the average 100-meter dash time of his team. A random selection of half the team has a mean time of 13 seconds. Is this mean considered a sample mean or a population mean, and which symbol would be used to denote it?

Select the correct answer below:

Population Mean μ

Sample Mean x¯¯¯

**19.Question**

Given the following list of data, find the median.

22,33,17,8,17,29,18,13,26,28

Ans.

**20.Question**

Given the following list of the number of pens randomly selected students purchased in the last semester, find the median.

13,7,8,37,32,19,17,32,12,26

Ans.

**21.Question**

Find the mode of the following amounts of exercise (in hours) randomly selected runners completed during a weekend.

2,14,14,4,2,4,1,14,4,4,8

Provide your answer below:

Ans.

**22.Question**

Each person in a group shuffles a deck of cards and keeps selecting a card until an ace appears. Find the mode of the following number of cards drawn from a deck until an ace appears.

14,10,7,14,9,9,10,12,9,7,12

Ans.

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