subject
Mathematics, 16.02.2021 01:10 honestty21

The National Sporting Goods Association (NSGA) conducted a survey of the ages of people that purchased athletic footwear in 2009. The ages are summarized in the following relative frequency distribution. Assume the survey was based on 100 individuals. Age of Purchaser Percent Under 14 years old 16 14 to 17 years old 8 18 to 24 years old 11 25 to 34 years old 12 35 to 44 years old 10 45 to 64 years old 29 65 years old and over 14 a. Calculate the average age of this distribution. Use 10 as the midpoint of the first class and 75 as the midpoint of the last class. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) b. Calculate the sample standard deviation. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 16:30
The length of the largest fish is 967.74 times greater than the length of the smallest fish. select a variable expression that shows the length of the largest fish, if 8 is the length of the smallest fish. a. s + 967.74 b. \[ \frac{967.74}{s} \] c. 967.74 - s d. 967. 74s
Answers: 1
question
Mathematics, 21.06.2019 20:00
Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?
Answers: 2
question
Mathematics, 21.06.2019 23:00
Could someone me with this question i’ve been stuck on it for 20 minutes
Answers: 1
question
Mathematics, 21.06.2019 23:20
Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?
Answers: 1
You know the right answer?
The National Sporting Goods Association (NSGA) conducted a survey of the ages of people that purchas...
Questions
question
Mathematics, 16.11.2020 20:00
question
Social Studies, 16.11.2020 20:00
question
Mathematics, 16.11.2020 20:00
question
History, 16.11.2020 20:00