1.For which one of the following distributions will the mean be a better measure of center than the median?

• Life expectancy in years
• Yearly salaries of NBA players
• Birth weight data from a large random sample of newborn babies
• Housing prices in LA County

2.Below is the five-number summary for 136 hikers who recently completed the John Muir Trail (JMT). The variable is the amount of time to complete the 212-mile hike from Yosemite Valley across the high Sierras to the top of Mount Whitney.

N= 136

Min =15

Q1 =15

Q2=27

Q3=35

Max=68

Which one of the known values is an outlier?

3a. T.V. newscaster invites viewers to tweet their opinions on a proposed bill on immigration policy.More than 205,000 people responded with 72% in support of the proposed bill.State the sampling method

• Voluntary Response Sample
• Stratified Sample
• Random Sample
• Simple Random Sample

3b.What can we conclude from the poll?

• We can't conclude anything
• We can conclude the sample is bias but because the sample is large enough the results are valid, 72% support the bill
• Because the sample size is so large we can conclude that 72% of the people support the proposed bill on immigration policy
• We can conclude that 72% of the people support the proposed bill on immigration policy

4.In 2019 Trulia (a real estate firm) reported that homes sales in San Francisco had a median cost of $1,145 per square foot. Home prices are strongly skewed to the right in San Francisco. Would the mean cost per square foot of a home in San Francisco be larger, smaller or about the same?

• larger
• smaller
• about the same

5.The director of a hospital pharmacy chooses at random 100 people age 60 or older from each of three surrounding counties to ask their opinion of a new prescription drug program.Identify the population?

• People age 60 and older that are customers of the pharmacy
• 100 people age 60 and older from 3 countries
• people age 60 and older from 3 countries
• people age 60 and older

5b.and sample

• 100 people age 60 and older from 3 counties
• People age 60 and older
• People age 60 and older that are customers of the pharmacy
• People age 60 and older from 3 counties

in the study.

6.The department of water tracks the number of inches of rain that fall each month.Data on rain patterns suggest that most rain occurs in the beginning months of the year and the rain tapers off as the year goes on.Which one of the following histograms best represents the distribution of rainfall per month over a year?

\f11I IV