1. Below are samples of rainfall collection for five days in Padang Gurun (in milliliters): 10 5 8 4 i. Calculate the mean and median. ii. Calculate the variance and standard deviation.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
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1. Below are samples of rainfall collection for five days in Padang Gurun (in milliliters):
10
6
4
i. Calculate the mean and median.
ii. Calculate the variance and standard deviation.
Transcribed Image Text:1. Below are samples of rainfall collection for five days in Padang Gurun (in milliliters): 10 6 4 i. Calculate the mean and median. ii. Calculate the variance and standard deviation.
2. An advertising company plans to market a product to low-income families. A study states that for a
particular area, the mean income per family is $24,596 and the standard deviation is $6,256.
Assume the variable is normally distributed. Find the probability that a randomly selected family
whose income is;
i. Less than $20,000.
ii. If the company plans to target the bottom 18% of the families based on income, find the cutoff
income.
Transcribed Image Text:2. An advertising company plans to market a product to low-income families. A study states that for a particular area, the mean income per family is $24,596 and the standard deviation is $6,256. Assume the variable is normally distributed. Find the probability that a randomly selected family whose income is; i. Less than $20,000. ii. If the company plans to target the bottom 18% of the families based on income, find the cutoff income.
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